- fixed MultiColor checkbox in Excellon Object to work in Legacy Mode (2D)

- modified the visibility change in Excellon UI to no longer do plot() when doing visibility toggle for one of the tools but only a visibility change in the shapes properties

appGUI/VisPyVisuals.py

@@ -145,7 +145,9 @@ class ShapeGroup(object):
         :param kwargs: keyword arguments
             Arguments for ShapeCollection.add function
         """
-        self._indexes.append(self._collection.add(**kwargs))
+        key = self._collection.add(**kwargs)
+        self._indexes.append(key)
+        return key
 
     def remove(self, idx, update=False):
         self._indexes.remove(idx)
@@ -196,6 +198,17 @@ class ShapeGroup(object):
 
         self._collection.redraw([])
 
+    def update_visibility(self, state, indexes=None):
+        if indexes:
+            for i in indexes:
+                if i in self._indexes:
+                    self._collection.data[i]['visible'] = state
+        else:
+            for i in self._indexes:
+                self._collection.data[i]['visible'] = state
+
+        self._collection.redraw([])
+
 
 class ShapeCollectionVisual(CompoundVisual):
 
@@ -326,6 +339,19 @@ class ShapeCollectionVisual(CompoundVisual):
         if update:
             self.__update()
 
+    def update_visibility(self, state:bool, indexes=None) -> None:
+        # Lock sub-visuals updates
+        self.update_lock.acquire(True)
+        if indexes is None:
+            for k, data in list(self.data.items()):
+                self.data[k]['visible'] = state
+        else:
+            for k, data in list(self.data.items()):
+                if k in indexes:
+                    self.data[k]['visible'] = state
+
+        self.update_lock.release()
+
     def update_color(self, new_mesh_color=None, new_line_color=None, indexes=None):
         if new_mesh_color is None and new_line_color is None:
             return
@@ -533,7 +559,7 @@ class ShapeCollectionVisual(CompoundVisual):
 
         self.results_lock.release()
 
-        if update_colors is None:
+        if update_colors is None or update_colors is False:
             self.__update()
         else:
             try: