- fixed the GRBL_laser preprocessor such that it does not have a Z move at the end of the job due of the fact that this preprocessor has moves only in the X-Y plane

- in Milling Plugin made sure the preprocessors that have the `laser_z` in the name (case insensitive) have the ability to change the Z height at the end of the job (through End_Z parameter)

appPlugins/ToolMilling.py

@@ -3512,8 +3512,12 @@ class ToolMilling(AppTool, Excellon):
             self.ui.cutzlabel.hide()
             self.ui.cutz_entry.hide()
 
-            self.ui.endz_label.hide()
-            self.ui.endz_entry.hide()
+            if 'laser_z' not in current_pp.lower():
+                self.ui.endz_label.hide()
+                self.ui.endz_entry.hide()
+            else:
+                self.ui.endz_label.show()
+                self.ui.endz_entry.show()
 
             self.ui.travelzlabel.hide()
             self.ui.travelz_entry.hide()