As my rather verbose title says, if a part is in a collision group of which does not collide with Default, it can’t be selected with a click; however, it can still be selected using a selection box as shown:
- Have a collision group ‘X’ that doesn’t collide with Default ready.
- Assign a part to collision group ‘X’. That should be it.
SelectionDemo.rbxl (14.8 KB)