diff --git a/FlatCAMApp.py b/FlatCAMApp.py
index bb1a1c9e..0e5c5e02 100644
--- a/FlatCAMApp.py
+++ b/FlatCAMApp.py
@@ -1419,6 +1419,7 @@ class App(QtCore.QObject):
 
         # Context Menu
         self.ui.popmenu_disable.triggered.connect(lambda: self.disable_plots(self.collection.get_selected()))
+        self.ui.popmenu_panel_toggle.triggered.connect(self.on_toggle_notebook)
 
         self.ui.popmenu_new_geo.triggered.connect(self.new_geometry_object)
         self.ui.popmenu_new_grb.triggered.connect(self.new_gerber_object)
diff --git a/README.md b/README.md
index 9f0f4dd7..680098d3 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ CAD program, and create G-Code for Isolation routing.
 24.05.2019
 
 - added a toggle Grid button to the canvas context menu in the Grids submenu
+- added a toggle left panel button to the canvas context menu
 
 23.05.2019
 
diff --git a/flatcamGUI/FlatCAMGUI.py b/flatcamGUI/FlatCAMGUI.py
index b3d87bc9..065f0536 100644
--- a/flatcamGUI/FlatCAMGUI.py
+++ b/flatcamGUI/FlatCAMGUI.py
@@ -732,7 +732,7 @@ class FlatCAMGUI(QtWidgets.QMainWindow):
         self.grb_edit_toolbar.addSeparator()
         self.aperture_move_btn = self.grb_edit_toolbar.addAction(QtGui.QIcon('share/move32.png'), _("Move"))
 
-        ### Snap Toolbar ###
+        # ## Snap Toolbar ###
         # Snap GRID toolbar is always active to facilitate usage of measurements done on GRID
         # self.addToolBar(self.snap_toolbar)
 
@@ -1579,7 +1579,9 @@ class FlatCAMGUI(QtWidgets.QMainWindow):
         # #############################################################
         self.popMenu = FCMenu()
 
-        self.popmenu_disable = self.popMenu.addAction(QtGui.QIcon('share/clear_plot32.png'), _("Disable"))
+        self.popmenu_disable = self.popMenu.addAction(QtGui.QIcon('share/disable32.png'), _("Disable Plot"))
+        self.popmenu_panel_toggle = self.popMenu.addAction(QtGui.QIcon('share/notebook16.png'), _("Toggle Panel"))
+
         self.popMenu.addSeparator()
         self.cmenu_newmenu = self.popMenu.addMenu(QtGui.QIcon('share/file32.png'), _("New"))
         self.popmenu_new_geo = self.cmenu_newmenu.addAction(QtGui.QIcon('share/new_geo32_bis.png'), _("Geometry"))
diff --git a/share/disable16.png b/share/disable16.png
new file mode 100644
index 00000000..ee7f0504
Binary files /dev/null and b/share/disable16.png differ
diff --git a/share/disable32.png b/share/disable32.png
new file mode 100644
index 00000000..ac2e6bf2
Binary files /dev/null and b/share/disable32.png differ
diff --git a/share/notebook16.png b/share/notebook16.png
new file mode 100644
index 00000000..f77ccaf7
Binary files /dev/null and b/share/notebook16.png differ