How can I disable ship drills ?

Hi,

Is there a way to disable a drill so that it cannot be operated manually?

I have a "ship full" script which turns lights on when full. I have been trying to make it disable the drills when the ship is full, it works fine if you operate the drill using ON and OFF, but if you are using the drill in manual mode, like most of us do, the on / off status is totally ignored.

I was hoping there is a way to separate Enable/Disable from on/off.