- in NCC Tool added ability to add multiple zones to clear when Area option is checked and the modifier key is pressed (either CTRL or SHIFT as set in Preferences). Right click of the mouse is an additional way to finish the job.

- fixed a bug in Excellon Editor that made that the selection of drills is always cumulative

flatcamEditors/FlatCAMExcEditor.py

@@ -1308,11 +1308,13 @@ class FCDrillSelect(DrawTool):
             self.exc_editor_app.selected = []
         else:
             modifiers = QtWidgets.QApplication.keyboardModifiers()
-            mod_key = 'Control'
+
             if modifiers == QtCore.Qt.ShiftModifier:
                 mod_key = 'Shift'
             elif modifiers == QtCore.Qt.ControlModifier:
                 mod_key = 'Control'
+            else:
+                mod_key = None
 
             if mod_key == self.draw_app.app.defaults["global_mselect_key"]:
                 if closest_shape in self.exc_editor_app.selected: