diff --git a/FlatCAM.py b/FlatCAM.py
index f1d870c0..e0c2879f 100644
--- a/FlatCAM.py
+++ b/FlatCAM.py
@@ -25,6 +25,7 @@ from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCan
 from camlib import *
 import sys
 import urllib
+import copy
 
 
 ########################################
@@ -1007,12 +1008,7 @@ class App:
         # User must take care to implement initialize
         # in a thread-safe way as is is likely that we
         # have been invoked in a separate thread.
-        initialize(obj, self)
-
-        # Check units and convert if necessary
-        if self.options["units"].upper() != obj.units.upper():
-            GLib.idle_add(lambda: self.info("Converting units to " + self.options["units"] + "."))
-            obj.convert_units(self.options["units"])
+        #initialize(obj, self)
 
         # Set default options from self.options
         for option in self.options:
@@ -1020,6 +1016,17 @@ class App:
                 oname = option[len(kind)+1:]
                 obj.options[oname] = self.options[option]
 
+        # Initialize as per user request
+        # User must take care to implement initialize
+        # in a thread-safe way as is is likely that we
+        # have been invoked in a separate thread.
+        initialize(obj, self)
+
+        # Check units and convert if necessary
+        if self.options["units"].upper() != obj.units.upper():
+            GLib.idle_add(lambda: self.info("Converting units to " + self.options["units"] + "."))
+            obj.convert_units(self.options["units"])
+
         # Add to our records
         self.stuff[name] = obj
 
@@ -1047,15 +1054,12 @@ class App:
         :type percentage: float
         :param text: Text to display on the progress bar.
         :type text: str
-        :return:
+        :return: None
         """
         self.progress_bar.set_text(text)
         self.progress_bar.set_fraction(percentage)
         return False
 
-    def save_project(self):
-        return
-
     def get_current(self):
         """
         Returns the currently selected FlatCAMObj in the application.
@@ -1063,6 +1067,11 @@ class App:
         :return: Currently selected FlatCAMObj in the application.
         :rtype: FlatCAMObj or None
         """
+
+        # TODO: Could possibly read the form into the object here.
+        # But there are some cases when the form for the object
+        # is not up yet. See on_tree_selection_changed.
+
         try:
             return self.stuff[self.selected_item_name]
         except:
@@ -1256,7 +1265,7 @@ class App:
         :return: None
         """
 
-        # Captura the latest changes
+        # Capture the latest changes
         try:
             self.get_current().read_form()
         except:
@@ -1300,6 +1309,7 @@ class App:
         except:
             print "WARNING: Failed to parse project file:", filename
             f.close()
+            return
 
         # Clear the current project
         self.on_file_new(None)
@@ -1387,8 +1397,7 @@ class App:
             "cb_gerber_plot": "Plot this object on the main window.",
             "cb_gerber_mergepolys": "Show overlapping polygons as single.",
             "cb_gerber_solid": "Paint inside polygons.",
-            "cb_gerber_multicolored": "Draw polygons with different polygons.",
-            "button1": ""
+            "cb_gerber_multicolored": "Draw polygons with different polygons."
         }
 
         for widget in tooltips:
@@ -1398,19 +1407,36 @@ class App:
     ##         EVENT HANDLERS             ##
     ########################################
     def on_offset_object(self, widget):
+        """
+        Offsets the object's geometry by the vector specified
+        in the form. Re-plots.
+
+        :param widget: Ignored
+        :return: None
+        """
+
         obj = self.get_current()
+        obj.read_form()
         assert isinstance(obj, FlatCAMObj)
         try:
             vect = self.get_eval("entry_eval_" + obj.kind + "_offset")
         except:
             self.info("ERROR: Vector is not in (x, y) format.")
+            return
         assert isinstance(obj, Geometry)
         obj.offset(vect)
         obj.plot(self.figure)
-        self.on_zoom_fit(None)
+        self.on_zoom_fit(None)  # TODO: Change this. Just done to aline all axes.
         return
 
     def on_cb_plot_toggled(self, widget):
+        """
+        Callback for toggling the "Plot" checkbox. Re-plots.
+
+        :param widget: Ignored.
+        :return: None
+        """
+
         self.get_current().read_form()
         self.get_current().plot(self.figure)
         self.on_zoom_fit(None)  # TODO: Does not update correctly otherwise.
@@ -1513,7 +1539,6 @@ class App:
 
         self.new_object("excellon", "Alignment Drills", obj_init)
 
-
     def on_toggle_pointbox(self, widget):
         """
         Callback for radio selection change between point and box in the
@@ -1618,6 +1643,7 @@ class App:
             for dim in dimensions:
                 options_set[dim] *= factor
 
+        # The scaling factor depending on choice of units.
         factor = 1/25.4
         if self.builder.get_object('rb_mm').get_active():
             factor = 25.4
@@ -1629,6 +1655,7 @@ class App:
             self.options2form()
             return
 
+        # Changing project units. Warn user.
         label = Gtk.Label("Changing the units of the project causes all geometrical \n" + \
                             "properties of all objects to be scaled accordingly. Continue?")
         dialog = Gtk.Dialog("Changing Project Units", self.window, 0,
@@ -1644,14 +1671,14 @@ class App:
         dialog.destroy()
 
         if response == Gtk.ResponseType.OK:
-            print "Converting units..."
-            print "Converting options..."
+            #print "Converting units..."
+            #print "Converting options..."
             self.read_form()
             scale_options(factor)
             self.options2form()
             for obj in self.stuff:
                 units = self.get_radio_value({"rb_mm": "MM", "rb_inch": "IN"})
-                print "Converting ", obj, " to ", units
+                #print "Converting ", obj, " to ", units
                 self.stuff[obj].convert_units(units)
             current = self.get_current()
             if current is not None:
@@ -1667,6 +1694,7 @@ class App:
             self.toggle_units_ignore = False
 
         self.read_form()
+        self.info("Converted units to %s" % self.options["units"])
         self.units_label.set_text("[" + self.options["units"] + "]")
 
     def on_file_openproject(self, param):
@@ -1743,6 +1771,7 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         self.options.update(self.defaults)
         self.options2form()  # Update UI
 
@@ -1754,6 +1783,7 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         self.defaults.update(self.options)
         self.options2form()  # Update UI
 
@@ -1765,9 +1795,10 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         obj = self.get_current()
         if obj is None:
-            print "WARNING: No object selected."
+            self.info("WARNING: No object selected.")
             return
         for option in self.options:
             if option.find(obj.kind + "_") == 0:
@@ -1783,9 +1814,10 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         obj = self.get_current()
         if obj is None:
-            print "WARNING: No object selected."
+            self.info("WARNING: No object selected.")
             return
         obj.read_form()
         for option in obj.options:
@@ -1804,7 +1836,7 @@ class App:
         """
         obj = self.get_current()
         if obj is None:
-            print "WARNING: No object selected."
+            self.info("WARNING: No object selected.")
             return
         obj.read_form()
         for option in obj.options:
@@ -1821,9 +1853,10 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         obj = self.get_current()
         if obj is None:
-            print "WARNING: No object selected."
+            self.info("WARNING: No object selected.")
             return
         for option in self.defaults:
             if option.find(obj.kind + "_") == 0:
@@ -1839,6 +1872,7 @@ class App:
         :param param: Ignored.
         :return: None
         """
+
         try:
             f = open("defaults.json")
             options = f.read()
@@ -1877,8 +1911,9 @@ class App:
         :param widget: The widget from which this was called. Ignore.
         :return: None
         """
-        combo_sel = self.combo_options.get_active()
-        print "Options --> ", combo_sel
+
+        #combo_sel = self.combo_options.get_active()
+        #print "Options --> ", combo_sel
         self.options2form()
 
     def on_options_update(self, widget):
@@ -1890,6 +1925,7 @@ class App:
         :param widget: The widget from which this was called. Ignore.
         :return: None
         """
+
         if self.options_update_ignore:
             return
         self.read_form()
@@ -1902,8 +1938,8 @@ class App:
         :param widget: Ignored.
         :return: None
         """
+
         obj = self.get_current()
-        assert isinstance(obj, FlatCAMObj)
         factor = self.get_eval("entry_eval_" + obj.kind + "_scalefactor")
         obj.scale(factor)
         obj.to_form()
@@ -1918,7 +1954,6 @@ class App:
         :param event: Ignored.
         :return: None
         """
-        print "on_canvas_configure()"
 
         xmin, xmax = self.axes.get_xlim()
         ymin, ymax = self.axes.get_ylim()
@@ -1941,6 +1976,7 @@ class App:
         """
         Callback for request from the Gerber form to generate a bounding box for the
         geometry in the object. Creates a FlatCAMGeometry with the bounding box.
+        The box can have rounded corners if specified in the form.
 
         :param widget: Ignored.
         :return: None
@@ -1948,12 +1984,13 @@ class App:
         # TODO: Use Gerber.get_bounding_box(...)
         gerber = self.get_current()
         gerber.read_form()
-        name = self.selected_item_name + "_bbox"
+        name = gerber.options["name"] + "_bbox"
 
         def geo_init(geo_obj, app_obj):
             assert isinstance(geo_obj, FlatCAMGeometry)
+            # Bounding box with rounded corners
             bounding_box = gerber.solid_geometry.envelope.buffer(gerber.options["bboxmargin"])
-            if not gerber.options["bboxrounded"]:
+            if not gerber.options["bboxrounded"]:  # Remove rounded corners
                 bounding_box = bounding_box.envelope
             geo_obj.solid_geometry = bounding_box
 
@@ -1967,19 +2004,19 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        print "Re-plotting"
 
-        self.get_current().read_form()
+        obj = self.get_current()
+        obj.read_form()
+
         self.set_progress_bar(0.5, "Plotting...")
-        #GLib.idle_add(lambda: self.set_progress_bar(0.5, "Plotting..."))
 
         def thread_func(app_obj):
             assert isinstance(app_obj, App)
             #GLib.idle_add(lambda: app_obj.set_progress_bar(0.5, "Plotting..."))
             #GLib.idle_add(lambda: app_obj.get_current().plot(app_obj.figure))
-            app_obj.get_current().plot(app_obj.figure)
+            obj.plot(app_obj.figure)
             GLib.idle_add(lambda: app_obj.on_zoom_fit(None))
-            GLib.timeout_add(300, lambda: app_obj.set_progress_bar(0.0, ""))
+            GLib.timeout_add(300, lambda: app_obj.set_progress_bar(0.0, "Idle"))
 
         t = threading.Thread(target=thread_func, args=(self,))
         t.daemon = True
@@ -1990,29 +2027,28 @@ class App:
         Callback for button active/click on Excellon form to
         create a CNC Job for the Excellon file.
 
-        :param widget: The widget from which this was called.
+        :param widget: Ignored
         :return: None
         """
 
-        job_name = self.selected_item_name + "_cnc"
         excellon = self.get_current()
-        assert isinstance(excellon, FlatCAMExcellon)
         excellon.read_form()
+        job_name = excellon.options["name"] + "_cnc"
 
         # Object initialization function for app.new_object()
         def job_init(job_obj, app_obj):
-            excellon_ = self.get_current()
-            assert isinstance(excellon_, FlatCAMExcellon)
+            # excellon_ = self.get_current()
+            # assert isinstance(excellon_, FlatCAMExcellon)
             assert isinstance(job_obj, FlatCAMCNCjob)
 
             GLib.idle_add(lambda: app_obj.set_progress_bar(0.2, "Creating CNC Job..."))
-            job_obj.z_cut = excellon_.options["drillz"]
-            job_obj.z_move = excellon_.options["travelz"]
-            job_obj.feedrate = excellon_.options["feedrate"]
+            job_obj.z_cut = excellon.options["drillz"]
+            job_obj.z_move = excellon.options["travelz"]
+            job_obj.feedrate = excellon.options["feedrate"]
             # There could be more than one drill size...
             # job_obj.tooldia =   # TODO: duplicate variable!
             # job_obj.options["tooldia"] =
-            job_obj.generate_from_excellon_by_tool(excellon_, excellon_.options["toolselection"])
+            job_obj.generate_from_excellon_by_tool(excellon, excellon.options["toolselection"])
 
             GLib.idle_add(lambda: app_obj.set_progress_bar(0.5, "Parsing G-Code..."))
             job_obj.gcode_parse()
@@ -2068,16 +2104,15 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        name = self.selected_item_name + "_noncopper"
+
+        gerb = self.get_current()
+        gerb.read_form()
+        name = gerb.options["name"] + "_noncopper"
 
         def geo_init(geo_obj, app_obj):
             assert isinstance(geo_obj, FlatCAMGeometry)
-            #gerber = app_obj.stuff[app_obj.selected_item_name]  # TODO: Remove.
-            gerber = app_obj.get_current()
-            assert isinstance(gerber, FlatCAMGerber)
-            gerber.read_form()
-            bounding_box = gerber.solid_geometry.envelope.buffer(gerber.options["noncoppermargin"])
-            non_copper = bounding_box.difference(gerber.solid_geometry)
+            bounding_box = gerb.solid_geometry.envelope.buffer(gerb.options["noncoppermargin"])
+            non_copper = bounding_box.difference(gerb.solid_geometry)
             geo_obj.solid_geometry = non_copper
 
         # TODO: Check for None
@@ -2091,15 +2126,15 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        name = self.selected_item_name + "_cutout"
+
+        gerb = self.get_current()
+        gerb.read_form()
+        name = gerb.options["name"] + "_cutout"
 
         def geo_init(geo_obj, app_obj):
-            # TODO: get from object
-            margin = app_obj.get_eval("entry_eval_gerber_cutoutmargin")
-            gap_size = app_obj.get_eval("entry_eval_gerber_cutoutgapsize")
-            #gerber = app_obj.stuff[app_obj.selected_item_name]
-            gerber = app_obj.get_current()
-            minx, miny, maxx, maxy = gerber.bounds()
+            margin = gerb.options["cutoutmargin"]
+            gap_size = gerb.options["cutoutgapsize"]
+            minx, miny, maxx, maxy = gerb.bounds()
             minx -= margin
             maxx += margin
             miny -= margin
@@ -2152,14 +2187,17 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        print "Generating Isolation Geometry:"
-        iso_name = self.selected_item_name + "_iso"
+
+        gerb = self.get_current()
+        gerb.read_form()
+        iso_name = gerb.options["name"] + "_iso"
 
         def iso_init(geo_obj, app_obj):
-            # TODO: Object must be updated on form change and the options
-            # TODO: read from the object.
-            tooldia = app_obj.get_eval("entry_eval_gerber_isotooldia")
-            geo_obj.solid_geometry = self.get_current().isolation_geometry(tooldia / 2.0)
+            # Propagate options
+            geo_obj.options["cnctooldia"] = gerb.options["isotooldia"]
+
+            geo_obj.solid_geometry = gerb.isolation_geometry(gerb.options["isotooldia"] / 2.0)
+            app_obj.info("Isolation geometry created: %s" % geo_obj.options["name"])
 
         # TODO: Do something if this is None. Offer changing name?
         self.new_object("geometry", iso_name, iso_init)
@@ -2171,26 +2209,26 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        print "Generating CNC job"
-        job_name = self.selected_item_name + "_cnc"
+
+        source_geo = self.get_current()
+        source_geo.read_form()
+        job_name = source_geo.options["name"] + "_cnc"
 
         # Object initialization function for app.new_object()
+        # RUNNING ON SEPARATE THREAD!
         def job_init(job_obj, app_obj):
             assert isinstance(job_obj, FlatCAMCNCjob)
-            #geometry = app_obj.stuff[app_obj.selected_item_name]
-            geometry = app_obj.get_current()
-            assert isinstance(geometry, FlatCAMGeometry)
-            geometry.read_form()
+            # Propagate options
+            job_obj.options["tooldia"] = source_geo.options["cnctooldia"]
 
             GLib.idle_add(lambda: app_obj.set_progress_bar(0.2, "Creating CNC Job..."))
-            job_obj.z_cut = geometry.options["cutz"]
-            job_obj.z_move = geometry.options["travelz"]
-            job_obj.feedrate = geometry.options["feedrate"]
-            job_obj.options["tooldia"] = geometry.options["cnctooldia"]
+            job_obj.z_cut = source_geo.options["cutz"]
+            job_obj.z_move = source_geo.options["travelz"]
+            job_obj.feedrate = source_geo.options["feedrate"]
 
             GLib.idle_add(lambda: app_obj.set_progress_bar(0.4, "Analyzing Geometry..."))
             # TODO: The tolerance should not be hard coded. Just for testing.
-            job_obj.generate_from_geometry(geometry, tolerance=0.0005)
+            job_obj.generate_from_geometry(source_geo, tolerance=0.0005)
 
             GLib.idle_add(lambda: app_obj.set_progress_bar(0.5, "Parsing G-Code..."))
             job_obj.gcode_parse()
@@ -2204,6 +2242,7 @@ class App:
         # To be run in separate thread
         def job_thread(app_obj):
             app_obj.new_object("cncjob", job_name, job_init)
+            GLib.idle_add(lambda: app_obj.info("CNCjob created: %s" % job_name))
             GLib.idle_add(lambda: app_obj.set_progress_bar(1.0, "Done!"))
             GLib.timeout_add_seconds(1, lambda: app_obj.set_progress_bar(0.0, ""))
 
@@ -2223,9 +2262,11 @@ class App:
         :param widget: The  widget from which this was called.
         :return: None
         """
+
         self.info("Click inside the desired polygon.")
         geo = self.get_current()
         geo.read_form()
+        assert isinstance(geo, FlatCAMGeometry)
         tooldia = geo.options["painttooldia"]
         overlap = geo.options["paintoverlap"]
 
@@ -2255,12 +2296,12 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        def on_success(self, filename):
-            cncjob = self.get_current()
+        def on_success(app_obj, filename):
+            cncjob = app_obj.get_current()
             f = open(filename, 'w')
             f.write(cncjob.gcode)
             f.close()
-            self.info("Saved to: " + filename)
+            app_obj.info("Saved to: " + filename)
 
         self.file_chooser_save_action(on_success)
 
@@ -2271,7 +2312,9 @@ class App:
         :param widget: The widget from which this was called.
         :return: None
         """
-        print "on_delete():", self.selected_item_name
+
+        # Keep this for later
+        name = copy.copy(self.selected_item_name)
 
         # Remove plot
         self.figure.delaxes(self.get_current().axes)
@@ -2283,6 +2326,8 @@ class App:
         # Update UI
         self.build_list()  # Update the items list
 
+        self.info("Object deleted: %s" % name)
+
     def on_toolbar_replot(self, widget):
         """
         Callback for toolbar button. Re-plots all objects.
@@ -2320,6 +2365,7 @@ class App:
         self.stuff[new_name] = self.stuff.pop(self.selected_item_name)  # Update dictionary
         self.stuff[new_name].options["name"] = new_name  # update object
         self.info('Name change: ' + self.selected_item_name + " to " + new_name)
+
         self.selected_item_name = new_name  # Update selection name
 
         self.build_list()  # Update the items list
@@ -2337,7 +2383,7 @@ class App:
         :type selection: Gtk.TreeSelection
         :return: None
         """
-        print "on_tree_selection_change(): ",
+        print "DEBUG: on_tree_selection_change(): ",
         model, treeiter = selection.get_selected()
 
         if treeiter is not None:
@@ -2346,13 +2392,13 @@ class App:
             if obj is not None:
                 obj.read_form()
 
-            print "You selected", model[treeiter][0]
+            print "DEBUG: You selected", model[treeiter][0]
             self.selected_item_name = model[treeiter][0]
             obj_new = self.get_current()
             if obj_new is not None:
                 GLib.idle_add(lambda: obj_new.build_ui())
         else:
-            print "Nothing selected"
+            print "DEBUG: Nothing selected"
             self.selected_item_name = None
             self.setup_component_editor()
 
@@ -2391,7 +2437,7 @@ class App:
         :param param: Whatever is passed by the event. Ignore.
         :return: None
         """
-        print "quit from menu"
+
         self.window.destroy()
         Gtk.main_quit()
 
@@ -2402,7 +2448,7 @@ class App:
         :param param: Whatever is passed by the event. Ignore.
         :return: None
         """
-        print "quit from X"
+
         self.window.destroy()
         Gtk.main_quit()
 
@@ -2431,7 +2477,7 @@ class App:
             t.start()
             #on_success(self, filename)
         elif response == Gtk.ResponseType.CANCEL:
-            print("Cancel clicked")
+            self.info("Open cancelled.")  # print("Cancel clicked")
             dialog.destroy()
 
     def file_chooser_save_action(self, on_success):
@@ -2454,7 +2500,7 @@ class App:
             dialog.destroy()
             on_success(self, filename)
         elif response == Gtk.ResponseType.CANCEL:
-            print("Cancel clicked")
+            self.info("Save cancelled.")  # print("Cancel clicked")
             dialog.destroy()
 
     def on_fileopengerber(self, param):
@@ -2536,9 +2582,13 @@ class App:
         def on_success(app_obj, filename):
             assert isinstance(app_obj, App)
 
-            def obj_init(job_obj, app_obj):
-                assert isinstance(app_obj, App)
-                GLib.idle_add(lambda: app_obj.set_progress_bar(0.1, "Opening G-Code ..."))
+            def obj_init(job_obj, app_obj_):
+                """
+
+                :type app_obj_: App
+                """
+                assert isinstance(app_obj_, App)
+                GLib.idle_add(lambda: app_obj_.set_progress_bar(0.1, "Opening G-Code ..."))
 
                 f = open(filename)
                 gcode = f.read()
@@ -2546,13 +2596,13 @@ class App:
 
                 job_obj.gcode = gcode
 
-                GLib.idle_add(lambda: app_obj.set_progress_bar(0.2, "Parsing ..."))
+                GLib.idle_add(lambda: app_obj_.set_progress_bar(0.2, "Parsing ..."))
                 job_obj.gcode_parse()
 
-                GLib.idle_add(lambda: app_obj.set_progress_bar(0.6, "Creating geometry ..."))
+                GLib.idle_add(lambda: app_obj_.set_progress_bar(0.6, "Creating geometry ..."))
                 job_obj.create_geometry()
 
-                GLib.idle_add(lambda: app_obj.set_progress_bar(0.6, "Plotting ..."))
+                GLib.idle_add(lambda: app_obj_.set_progress_bar(0.6, "Plotting ..."))
 
             name = filename.split('/')[-1].split('\\')[-1]
             app_obj.new_object("cncjob", name, obj_init)
@@ -2572,6 +2622,7 @@ class App:
         :param event: Contains information about the event.
         :return: None
         """
+
         try:  # May fail in case mouse not within axes
             self.position_label.set_label("X: %.4f   Y: %.4f" % (
                 event.xdata, event.ydata))
@@ -2594,6 +2645,7 @@ class App:
             was clicked, the pixel coordinates and the axes coordinates.
         :return: None
         """
+
         # For key presses
         self.canvas.grab_focus()
 
@@ -2676,7 +2728,7 @@ class App:
         :param event: Ignored.
         :return: None
         """
-        print 'you pressed', event.key, event.xdata, event.ydata
+        #print 'you pressed', event.key, event.xdata, event.ydata
 
         if event.key == '1':  # 1
             self.on_zoom_fit(None)
diff --git a/FlatCAM.ui b/FlatCAM.ui
index 982696c4..a7703851 100644
--- a/FlatCAM.ui
+++ b/FlatCAM.ui
@@ -2122,6 +2122,8 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label13">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Isolation Routing:&lt;/b&gt; Cutting copper
+around traces for electrical isolation.</property>
                     <property name="margin_top">5</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2146,6 +2148,9 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label14">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Tool paths for isolation routing are drawn
+at 1/2 of the tool diameter away from
+polygons defined in Gerber.</property>
                         <property name="xalign">1</property>
                         <property name="xpad">3</property>
                         <property name="label" translatable="yes">Tool diam:</property>
@@ -2188,6 +2193,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Creates a geometry object with tool
+paths for isolation routing.</property>
                     <signal name="activate" handler="on_generate_isolation" swapped="no"/>
                     <signal name="clicked" handler="on_generate_isolation" swapped="no"/>
                   </object>
@@ -2201,6 +2208,8 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label4">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Board cutout:&lt;/b&gt; Cut around
+the edge of the board.</property>
                     <property name="margin_top">5</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2224,6 +2233,9 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label27">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Distance away from the rectangular edge
+enclosing the board to generate the
+cutting tool path.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Margin: </property>
                       </object>
@@ -2270,6 +2282,9 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label28">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Length of the gaps along the toolpath.
+These gaps are needed to hold the
+board in place until the job is complete.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Gap size: </property>
                       </object>
@@ -2304,6 +2319,8 @@ THE SOFTWARE.</property>
                             <property name="visible">True</property>
                             <property name="can_focus">True</property>
                             <property name="receives_default">False</property>
+                            <property name="tooltip_markup" translatable="yes">Gaps are placed on the top and
+bottom edges of the board cutout.</property>
                             <property name="margin_right">8</property>
                             <property name="xalign">0</property>
                             <property name="draw_indicator">True</property>
@@ -2321,6 +2338,8 @@ THE SOFTWARE.</property>
                             <property name="visible">True</property>
                             <property name="can_focus">True</property>
                             <property name="receives_default">False</property>
+                            <property name="tooltip_markup" translatable="yes">Gaps are placed on the left and right
+edges of the board cutout.</property>
                             <property name="margin_right">8</property>
                             <property name="xalign">0</property>
                             <property name="active">True</property>
@@ -2338,6 +2357,8 @@ THE SOFTWARE.</property>
                             <property name="visible">True</property>
                             <property name="can_focus">True</property>
                             <property name="receives_default">False</property>
+                            <property name="tooltip_markup" translatable="yes">Gaps are placed on the four edges
+of the board cutout.</property>
                             <property name="xalign">0</property>
                             <property name="draw_indicator">True</property>
                             <property name="group">rb_2lr</property>
@@ -2369,6 +2390,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Generates the Geometry object with
+toolpaths for board cutout.</property>
                     <signal name="activate" handler="on_gerber_generate_cutout" swapped="no"/>
                     <signal name="clicked" handler="on_gerber_generate_cutout" swapped="no"/>
                   </object>
@@ -2382,6 +2405,12 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label30">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Non-copper regions&lt;/b&gt;: Use to create
+geometry with polygons covering areas
+without copper on the board.
+
+This can be used, for example, to clear all
+copper from certain regions.</property>
                     <property name="margin_top">5</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2407,6 +2436,12 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label31">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Defines how far from the rectangular box
+enclosing the contents of the board the
+edge of the board is.
+
+Copper-free areas will be located within
+this boundary.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Boundary margin: </property>
                       </object>
@@ -2444,6 +2479,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Creates a Geometry Object covering
+areas without copper.</property>
                     <signal name="activate" handler="on_gerber_generate_noncopper" swapped="no"/>
                     <signal name="clicked" handler="on_gerber_generate_noncopper" swapped="no"/>
                   </object>
@@ -2457,6 +2494,8 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label41">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Bounding Box:&lt;/b&gt; A simple rectangular
+boundary around the PCB contents.</property>
                     <property name="margin_top">5</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2482,6 +2521,9 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label42">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Distance from the rectangular box enclosing
+the PCB contents at which to draw the
+bounding box.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Boundary margin: </property>
                       </object>
@@ -2519,6 +2561,9 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">False</property>
+                    <property name="tooltip_markup" translatable="yes">Whether to draw rounded corners on the bounding 
+box. The radius is the Boundary margin.
+</property>
                     <property name="xalign">0</property>
                     <property name="draw_indicator">True</property>
                   </object>
@@ -2534,6 +2579,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Generates a Geometry object
+with the bounding box.</property>
                     <signal name="activate" handler="on_generate_gerber_bounding_box" swapped="no"/>
                     <signal name="clicked" handler="on_generate_gerber_bounding_box" swapped="no"/>
                   </object>
@@ -2547,6 +2594,9 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label51">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Scale:&lt;/b&gt; Resizes the geometry
+of the object. All sizes and coordinates
+are multiplied by the given factor.</property>
                     <property name="margin_top">3</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2572,6 +2622,8 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label52">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Factor by which to multiply all
+geometrical dimensions.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Factor:</property>
                       </object>
@@ -2608,6 +2660,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Scales the geometry
+of this object.</property>
                     <signal name="activate" handler="on_scale_object" swapped="no"/>
                     <signal name="clicked" handler="on_scale_object" swapped="no"/>
                   </object>
@@ -2621,6 +2675,8 @@ THE SOFTWARE.</property>
                   <object class="GtkLabel" id="label97">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="tooltip_markup" translatable="yes">&lt;b&gt;Offset:&lt;/b&gt; Shift the geometry of
+this object by the specified (x, y) vector.</property>
                     <property name="margin_top">3</property>
                     <property name="xalign">0</property>
                     <property name="ypad">3</property>
@@ -2646,6 +2702,10 @@ THE SOFTWARE.</property>
                       <object class="GtkLabel" id="label98">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
+                        <property name="tooltip_markup" translatable="yes">Vector by which to offset the geometry.
+Format is &lt;b&gt;(x, y)&lt;/b&gt;, where &lt;b&gt;x&lt;/b&gt; and &lt;b&gt;y&lt;/b&gt; are
+decimal numbers representing the
+distance in the corresponding axis.</property>
                         <property name="xalign">1</property>
                         <property name="label" translatable="yes">Offset Vector: </property>
                       </object>
@@ -2682,6 +2742,8 @@ THE SOFTWARE.</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="receives_default">True</property>
+                    <property name="tooltip_markup" translatable="yes">Offset the geometry of
+this object.</property>
                     <signal name="activate" handler="on_offset_object" swapped="no"/>
                     <signal name="clicked" handler="on_offset_object" swapped="no"/>
                   </object>
@@ -3472,6 +3534,9 @@ project.</property>
                                       <object class="GtkLabel" id="label58">
                                         <property name="visible">True</property>
                                         <property name="can_focus">False</property>
+                                        <property name="tooltip_markup" translatable="yes">Tool paths for isolation routing are drawn
+at 1/2 of the tool diameter away from
+polygons defined in Gerber.</property>
                                         <property name="xalign">1</property>
                                         <property name="xpad">3</property>
                                         <property name="label" translatable="yes">Tool diam:</property>
diff --git a/camlib.py b/camlib.py
index 6d0d71c0..f0335626 100644
--- a/camlib.py
+++ b/camlib.py
@@ -167,6 +167,14 @@ class Geometry:
         """
         Sets object's attributes from a dictionary.
         Attributes to include are listed in ``self.ser_attrs``.
+        This method will look only for only and all the
+        attributes in ``self.ser_attrs``. They must all
+        be present. Use only for deserializing saved
+        objects.
+
+        :param d: Dictionary of attributes to set in the object.
+        :type d: dict
+        :return: None
         """
         for attr in self.ser_attrs:
             setattr(self, attr, d[attr])
@@ -523,8 +531,8 @@ class Gerber (Geometry):
         Main Gerber parser. Reads Gerber and populates ``self.paths``, ``self.apertures``,
         ``self.flashes``, ``self.regions`` and ``self.units``.
 
-        :param glines: Gerber code as list of strings, each
-        element being one line of the source file.
+        :param glines: Gerber code as list of strings, each element being
+            one line of the source file.
         :type glines: list
         :return: None
         :rtype: None
@@ -1219,10 +1227,10 @@ class CNCjob(Geometry):
         :param append: Wether to append to self.gcode or re-write it.
         :type append: bool
         :param tooldia: If given, sets the tooldia property but does
-        not affect the process in any other way.
+            not affect the process in any other way.
         :type tooldia: bool
         :param tolerance: All points in the simplified object will be within the
-        tolerance distance of the original geometry.
+            tolerance distance of the original geometry.
         :return: None
         :rtype: None
         """
@@ -1487,7 +1495,7 @@ class CNCjob(Geometry):
         :param polygon: A Shapely.Polygon
         :type polygon: Shapely.Polygon
         :param tolerance: All points in the simplified object will be within the
-        tolerance distance of the original geometry.
+            tolerance distance of the original geometry.
         :type tolerance: float
         :return: G-code to cut along polygon.
         :rtype: str
@@ -1522,7 +1530,7 @@ class CNCjob(Geometry):
         :param linear: The path to cut along.
         :type: Shapely.LinearRing or Shapely.Linear String
         :param tolerance: All points in the simplified object will be within the
-        tolerance distance of the original geometry.
+            tolerance distance of the original geometry.
         :type tolerance: float
         :return: G-code to cut alon the linear feature.
         :rtype: str
diff --git a/doc/build/.doctrees/environment.pickle b/doc/build/.doctrees/environment.pickle
index ad947bc6..d97c4451 100644
Binary files a/doc/build/.doctrees/environment.pickle and b/doc/build/.doctrees/environment.pickle differ
diff --git a/doc/build/.doctrees/index.doctree b/doc/build/.doctrees/index.doctree
index 07e89526..b8e1ac22 100644
Binary files a/doc/build/.doctrees/index.doctree and b/doc/build/.doctrees/index.doctree differ
diff --git a/doc/build/genindex.html b/doc/build/genindex.html
index ba92f742..656891a8 100644
--- a/doc/build/genindex.html
+++ b/doc/build/genindex.html
@@ -131,6 +131,7 @@
  | <a href="#R"><strong>R</strong></a>
  | <a href="#S"><strong>S</strong></a>
  | <a href="#T"><strong>T</strong></a>
+ | <a href="#V"><strong>V</strong></a>
  | <a href="#Z"><strong>Z</strong></a>
  
 </div>
@@ -392,11 +393,19 @@
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%" valign="top"><dl>
       
-  <dt><a href="index.html#FlatCAM.Excellon.offset">offset() (FlatCAM.Excellon method)</a>
+  <dt><a href="index.html#FlatCAM.CNCjob.offset">offset() (FlatCAM.CNCjob method)</a>
   </dt>
 
       <dd><dl>
         
+  <dt><a href="index.html#FlatCAM.Excellon.offset">(FlatCAM.Excellon method)</a>
+  </dt>
+
+        
+  <dt><a href="index.html#FlatCAM.FlatCAMGeometry.offset">(FlatCAM.FlatCAMGeometry method)</a>
+  </dt>
+
+        
   <dt><a href="index.html#FlatCAM.Geometry.offset">(FlatCAM.Geometry method)</a>
   </dt>
 
@@ -418,6 +427,10 @@
   </dt>
 
       
+  <dt><a href="index.html#FlatCAM.App.on_cb_plot_toggled">on_cb_plot_toggled() (FlatCAM.App method)</a>
+  </dt>
+
+      
   <dt><a href="index.html#FlatCAM.App.on_clear_plots">on_clear_plots() (FlatCAM.App method)</a>
   </dt>
 
@@ -536,6 +549,10 @@
   </dt>
 
       
+  <dt><a href="index.html#FlatCAM.App.on_offset_object">on_offset_object() (FlatCAM.App method)</a>
+  </dt>
+
+      
   <dt><a href="index.html#FlatCAM.App.on_options_app2object">on_options_app2object() (FlatCAM.App method)</a>
   </dt>
 
@@ -626,9 +643,15 @@
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%" valign="top"><dl>
       
-  <dt><a href="index.html#FlatCAM.Gerber.parse_file">parse_file() (FlatCAM.Gerber method)</a>
+  <dt><a href="index.html#FlatCAM.Excellon.parse_file">parse_file() (FlatCAM.Excellon method)</a>
   </dt>
 
+      <dd><dl>
+        
+  <dt><a href="index.html#FlatCAM.Gerber.parse_file">(FlatCAM.Gerber method)</a>
+  </dt>
+
+      </dl></dd>
       
   <dt><a href="index.html#FlatCAM.Excellon.parse_lines">parse_lines() (FlatCAM.Excellon method)</a>
   </dt>
@@ -693,6 +716,12 @@
   <dt><a href="index.html#FlatCAM.App.read_form_item">read_form_item() (FlatCAM.App method)</a>
   </dt>
 
+      <dd><dl>
+        
+  <dt><a href="index.html#FlatCAM.FlatCAMObj.read_form_item">(FlatCAM.FlatCAMObj method)</a>
+  </dt>
+
+      </dl></dd>
   </dl></td>
 </tr></table>
 
@@ -713,6 +742,10 @@
   </dt>
 
         
+  <dt><a href="index.html#FlatCAM.FlatCAMGeometry.scale">(FlatCAM.FlatCAMGeometry method)</a>
+  </dt>
+
+        
   <dt><a href="index.html#FlatCAM.Geometry.scale">(FlatCAM.Geometry method)</a>
   </dt>
 
@@ -788,6 +821,16 @@
   </dl></td>
 </tr></table>
 
+<h2 id="V">V</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#FlatCAM.App.versionCheck">versionCheck() (FlatCAM.App method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
 <h2 id="Z">Z</h2>
 <table style="width: 100%" class="indextable genindextable"><tr>
   <td style="width: 33%" valign="top"><dl>
diff --git a/doc/build/index.html b/doc/build/index.html
index 27e54ea1..55d15d24 100644
--- a/doc/build/index.html
+++ b/doc/build/index.html
@@ -381,6 +381,22 @@ as to use the whole canvas.</p>
 </table>
 </dd></dl>
 
+<dl class="method">
+<dt id="FlatCAM.App.on_cb_plot_toggled">
+<tt class="descname">on_cb_plot_toggled</tt><big>(</big><em>widget</em><big>)</big><a class="headerlink" href="#FlatCAM.App.on_cb_plot_toggled" title="Permalink to this definition">¶</a></dt>
+<dd><p>Callback for toggling the &#8220;Plot&#8221; checkbox. Re-plots.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>widget</strong> &#8211; Ignored.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 <dl class="method">
 <dt id="FlatCAM.App.on_clear_plots">
 <tt class="descname">on_clear_plots</tt><big>(</big><em>widget</em><big>)</big><a class="headerlink" href="#FlatCAM.App.on_clear_plots" title="Permalink to this definition">¶</a></dt>
@@ -756,7 +772,7 @@ create a CNC Job for the Excellon file.</p>
 <col class="field-name" />
 <col class="field-body" />
 <tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>widget</strong> &#8211; The widget from which this was called.</td>
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>widget</strong> &#8211; Ignored</td>
 </tr>
 <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
 </tr>
@@ -768,7 +784,8 @@ create a CNC Job for the Excellon file.</p>
 <dt id="FlatCAM.App.on_generate_gerber_bounding_box">
 <tt class="descname">on_generate_gerber_bounding_box</tt><big>(</big><em>widget</em><big>)</big><a class="headerlink" href="#FlatCAM.App.on_generate_gerber_bounding_box" title="Permalink to this definition">¶</a></dt>
 <dd><p>Callback for request from the Gerber form to generate a bounding box for the
-geometry in the object. Creates a FlatCAMGeometry with the bounding box.</p>
+geometry in the object. Creates a FlatCAMGeometry with the bounding box.
+The box can have rounded corners if specified in the form.</p>
 <table class="docutils field-list" frame="void" rules="none">
 <col class="field-name" />
 <col class="field-body" />
@@ -909,6 +926,23 @@ For details, see: <a class="reference external" href="http://matplotlib.org/user
 </table>
 </dd></dl>
 
+<dl class="method">
+<dt id="FlatCAM.App.on_offset_object">
+<tt class="descname">on_offset_object</tt><big>(</big><em>widget</em><big>)</big><a class="headerlink" href="#FlatCAM.App.on_offset_object" title="Permalink to this definition">¶</a></dt>
+<dd><p>Offsets the object&#8217;s geometry by the vector specified
+in the form. Re-plots.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>widget</strong> &#8211; Ignored</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 <dl class="method">
 <dt id="FlatCAM.App.on_options_app2object">
 <tt class="descname">on_options_app2object</tt><big>(</big><em>param</em><big>)</big><a class="headerlink" href="#FlatCAM.App.on_options_app2object" title="Permalink to this definition">¶</a></dt>
@@ -1417,7 +1451,7 @@ in the GUI. This selection will in turn trigger
 </ul>
 </td>
 </tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"></p>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">None</p>
 </td>
 </tr>
 </tbody>
@@ -1488,6 +1522,22 @@ displayed.</p>
 </table>
 </dd></dl>
 
+<dl class="method">
+<dt id="FlatCAM.App.versionCheck">
+<tt class="descname">versionCheck</tt><big>(</big><big>)</big><a class="headerlink" href="#FlatCAM.App.versionCheck" title="Permalink to this definition">¶</a></dt>
+<dd><p>Checks for the latest version of the program. Alerts the
+user if theirs is outdated. This method is meant to be run
+in a saeparate thread.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 <dl class="method">
 <dt id="FlatCAM.App.zoom">
 <tt class="descname">zoom</tt><big>(</big><em>factor</em>, <em>center=None</em><big>)</big><a class="headerlink" href="#FlatCAM.App.zoom" title="Permalink to this definition">¶</a></dt>
@@ -1553,7 +1603,21 @@ it again in descendents.</p>
 <dt id="FlatCAM.Geometry.from_dict">
 <tt class="descname">from_dict</tt><big>(</big><em>d</em><big>)</big><a class="headerlink" href="#FlatCAM.Geometry.from_dict" title="Permalink to this definition">¶</a></dt>
 <dd><p>Sets object&#8217;s attributes from a dictionary.
-Attributes to include are listed in <tt class="docutils literal"><span class="pre">self.ser_attrs</span></tt>.</p>
+Attributes to include are listed in <tt class="docutils literal"><span class="pre">self.ser_attrs</span></tt>.
+This method will look only for only and all the
+attributes in <tt class="docutils literal"><span class="pre">self.ser_attrs</span></tt>. They must all
+be present. Use only for deserializing saved
+objects.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>d</strong> (<em>dict</em>) &#8211; Dictionary of attributes to set in the object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
 </dd></dl>
 
 <dl class="method">
@@ -1876,14 +1940,15 @@ read from the given file.</p>
 <col class="field-name" />
 <col class="field-body" />
 <tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>glines</strong> &#8211; Gerber code as list of strings, each</td>
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>glines</strong> (<em>list</em>) &#8211; Gerber code as list of strings, each element being
+one line of the source file.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">None</td>
 </tr>
 </tbody>
 </table>
-<p>element being one line of the source file.
-:type glines: list
-:return: None
-:rtype: None</p>
 </dd></dl>
 
 <dl class="method">
@@ -1950,10 +2015,37 @@ the size (diameter).</li>
 </table>
 </dd></dl>
 
+<dl class="method">
+<dt id="FlatCAM.Excellon.parse_file">
+<tt class="descname">parse_file</tt><big>(</big><em>filename</em><big>)</big><a class="headerlink" href="#FlatCAM.Excellon.parse_file" title="Permalink to this definition">¶</a></dt>
+<dd><p>Reads the specified file as array of lines as
+passes it to <tt class="docutils literal"><span class="pre">parse_lines()</span></tt>.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>filename</strong> (<em>str</em>) &#8211; The file to be read and parsed.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 <dl class="method">
 <dt id="FlatCAM.Excellon.parse_lines">
 <tt class="descname">parse_lines</tt><big>(</big><em>elines</em><big>)</big><a class="headerlink" href="#FlatCAM.Excellon.parse_lines" title="Permalink to this definition">¶</a></dt>
 <dd><p>Main Excellon parser.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>elines</strong> (<em>list</em>) &#8211; List of strings, each being a line of Excellon code.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
 </dd></dl>
 
 <dl class="method">
@@ -2057,21 +2149,24 @@ for the specified tools.</p>
 <col class="field-name" />
 <col class="field-body" />
 <tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
 <li><strong>geometry</strong> (<em>Geometry</em>) &#8211; Geometry defining the toolpath</li>
 <li><strong>append</strong> (<em>bool</em>) &#8211; Wether to append to self.gcode or re-write it.</li>
-<li><strong>tooldia</strong> &#8211; If given, sets the tooldia property but does</li>
+<li><strong>tooldia</strong> (<em>bool</em>) &#8211; If given, sets the tooldia property but does
+not affect the process in any other way.</li>
+<li><strong>tolerance</strong> &#8211; All points in the simplified object will be within the
+tolerance distance of the original geometry.</li>
 </ul>
 </td>
 </tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">None</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">None</p>
+</td>
+</tr>
 </tbody>
 </table>
-<p>not affect the process in any other way.
-:type tooldia: bool
-:param tolerance: All points in the simplified object will be within the
-tolerance distance of the original geometry.
-:return: None
-:rtype: None</p>
 </dd></dl>
 
 <dl class="method">
@@ -2084,24 +2179,44 @@ tolerance distance of the original geometry.
 <tbody valign="top">
 <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
 <li><strong>linear</strong> &#8211; The path to cut along.</li>
-<li><strong>tolerance</strong> &#8211; All points in the simplified object will be within the</li>
+<li><strong>tolerance</strong> (<em>float</em>) &#8211; All points in the simplified object will be within the
+tolerance distance of the original geometry.</li>
 </ul>
 </td>
 </tr>
-<tr class="field-even field"><th class="field-name">Type:</th><td class="field-body"><p class="first last">Shapely.LinearRing or Shapely.Linear String</p>
+<tr class="field-even field"><th class="field-name">Type:</th><td class="field-body"><p class="first">Shapely.LinearRing or Shapely.Linear String</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">G-code to cut alon the linear feature.</p>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">str</p>
 </td>
 </tr>
 </tbody>
 </table>
-<p>tolerance distance of the original geometry.
-:type tolerance: float
-:return: G-code to cut alon the linear feature.
-:rtype: str</p>
+</dd></dl>
+
+<dl class="method">
+<dt id="FlatCAM.CNCjob.offset">
+<tt class="descname">offset</tt><big>(</big><em>vect</em><big>)</big><a class="headerlink" href="#FlatCAM.CNCjob.offset" title="Permalink to this definition">¶</a></dt>
+<dd><p>Offsets all the geometry on the XY plane in the object by the
+given vector.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>vect</strong> (<em>tuple</em>) &#8211; (x, y) offset vector.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
 </dd></dl>
 
 <dl class="method">
 <dt id="FlatCAM.CNCjob.plot2">
-<tt class="descname">plot2</tt><big>(</big><em>axes, tooldia=None, dpi=75, margin=0.1, color={'C': ['#5E6CFF', '#4650BD'], 'T': ['#F0E24D', '#B5AB3A']}, alpha={'C': 1.0, 'T': 0.3}, tool_tolerance=0.001</em><big>)</big><a class="headerlink" href="#FlatCAM.CNCjob.plot2" title="Permalink to this definition">¶</a></dt>
+<tt class="descname">plot2</tt><big>(</big><em>axes, tooldia=None, dpi=75, margin=0.1, color={'C': ['#5E6CFF', '#4650BD'], 'T': ['#F0E24D', '#B5AB3A']}, alpha={'C': 1.0, 'T': 0.3}, tool_tolerance=0.0005</em><big>)</big><a class="headerlink" href="#FlatCAM.CNCjob.plot2" title="Permalink to this definition">¶</a></dt>
 <dd><p>Plots the G-code job onto the given axes.</p>
 <table class="docutils field-list" frame="void" rules="none">
 <col class="field-name" />
@@ -2134,18 +2249,21 @@ of a polygon.</p>
 <col class="field-name" />
 <col class="field-body" />
 <tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
 <li><strong>polygon</strong> (<em>Shapely.Polygon</em>) &#8211; A Shapely.Polygon</li>
-<li><strong>tolerance</strong> &#8211; All points in the simplified object will be within the</li>
+<li><strong>tolerance</strong> (<em>float</em>) &#8211; All points in the simplified object will be within the
+tolerance distance of the original geometry.</li>
 </ul>
 </td>
 </tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">G-code to cut along polygon.</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">str</p>
+</td>
+</tr>
 </tbody>
 </table>
-<p>tolerance distance of the original geometry.
-:type tolerance: float
-:return: G-code to cut along polygon.
-:rtype: str</p>
 </dd></dl>
 
 <dl class="method">
@@ -2210,10 +2328,16 @@ by the user in their respective forms.</p>
 <dl class="method">
 <dt id="FlatCAM.FlatCAMObj.deserialize">
 <tt class="descname">deserialize</tt><big>(</big><em>obj_dict</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMObj.deserialize" title="Permalink to this definition">¶</a></dt>
-<dd><p>Re-builds an object from its serialized version.
-&#64;param obj_dict: Dictionary representing a FlatCAMObj
-&#64;type obj_dict: dict
-&#64;return None</p>
+<dd><p>Re-builds an object from its serialized version.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>obj_dict</strong> (<em>dict</em>) &#8211; Dictionary representing a FlatCAMObj</td>
+</tr>
+</tbody>
+</table>
+<p>:return None</p>
 </dd></dl>
 
 <dl class="method">
@@ -2239,19 +2363,43 @@ clears them. Descendants must do the actual plotting.</p>
 </table>
 </dd></dl>
 
+<dl class="method">
+<dt id="FlatCAM.FlatCAMObj.read_form_item">
+<tt class="descname">read_form_item</tt><big>(</big><em>option</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMObj.read_form_item" title="Permalink to this definition">¶</a></dt>
+<dd><p>Reads the specified option from the UI form into <tt class="docutils literal"><span class="pre">self.options</span></tt>.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>option</strong> (<em>str</em>) &#8211; Name of the option.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 <dl class="method">
 <dt id="FlatCAM.FlatCAMObj.serialize">
 <tt class="descname">serialize</tt><big>(</big><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMObj.serialize" title="Permalink to this definition">¶</a></dt>
 <dd><p>Returns a representation of the object as a dictionary so
-it can be later exported as JSON. Override this method.
-&#64;return: Dictionary representing the object
-&#64;rtype: dict</p>
+it can be later exported as JSON. Override this method.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Dictionary representing the object</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">dict</td>
+</tr>
+</tbody>
+</table>
 </dd></dl>
 
 <dl class="method">
 <dt id="FlatCAM.FlatCAMObj.set_form_item">
 <tt class="descname">set_form_item</tt><big>(</big><em>option</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMObj.set_form_item" title="Permalink to this definition">¶</a></dt>
-<dd><p>Copies the specified options to the UI form.</p>
+<dd><p>Copies the specified option to the UI form.</p>
 <table class="docutils field-list" frame="void" rules="none">
 <col class="field-name" />
 <col class="field-body" />
@@ -2342,7 +2490,7 @@ and options.</p>
 <dl class="class">
 <dt id="FlatCAM.FlatCAMExcellon">
 <em class="property">class </em><tt class="descclassname">FlatCAM.</tt><tt class="descname">FlatCAMExcellon</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMExcellon" title="Permalink to this definition">¶</a></dt>
-<dd><p>Represents Excellon code.</p>
+<dd><p>Represents Excellon/Drill code.</p>
 </dd></dl>
 
 <dl class="class">
@@ -2356,6 +2504,42 @@ and options.</p>
 <em class="property">class </em><tt class="descclassname">FlatCAM.</tt><tt class="descname">FlatCAMGeometry</tt><big>(</big><em>name</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMGeometry" title="Permalink to this definition">¶</a></dt>
 <dd><p>Geometric object not associated with a specific
 format.</p>
+<dl class="method">
+<dt id="FlatCAM.FlatCAMGeometry.offset">
+<tt class="descname">offset</tt><big>(</big><em>vect</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMGeometry.offset" title="Permalink to this definition">¶</a></dt>
+<dd><p>Offsets all geometry by a given vector/</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>vect</strong> (<em>tuple</em>) &#8211; (x, y) vector by which to offset the object&#8217;s geometry.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="method">
+<dt id="FlatCAM.FlatCAMGeometry.scale">
+<tt class="descname">scale</tt><big>(</big><em>factor</em><big>)</big><a class="headerlink" href="#FlatCAM.FlatCAMGeometry.scale" title="Permalink to this definition">¶</a></dt>
+<dd><p>Scales all geometry by a given factor.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>factor</strong> (<em>float</em>) &#8211; Factor by which to scale the object&#8217;s geometry/</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">None</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">None</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
 </dd></dl>
 
 </div>
diff --git a/doc/build/objects.inv b/doc/build/objects.inv
index 61b6b583..10cbc991 100644
Binary files a/doc/build/objects.inv and b/doc/build/objects.inv differ
diff --git a/doc/build/searchindex.js b/doc/build/searchindex.js
index 0363d6c5..1016c824 100644
--- a/doc/build/searchindex.js
+++ b/doc/build/searchindex.js
@@ -1 +1 @@
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