Edit Collider snap to vertical

Is there a way to make the Edit Collider button snap to vertical/horizontal? I know shift and control add and remove but I’m wondering if there’s a key to hold down (like in photoshop etc.) where it will snap to right angles i.e. vertical/horizontal. Otherwise it makes it kind of difficult to do pixel work.

Is there a reason why you can’t use the XYZ values to place your objects?