non-functioning internal items - persiscope

[Fidd2]

I've noticed all the attributes to various internal dials, but wouldn't know where to start to change 'em. What has made me wonder if anyone has tried to see if fucntionality can be assigned to mouseclicking some of the apparantly non-functional internal instrumentation/equipment. I'm thinking particularly of the attack periscope as viewed from the conning tower - is it possible to make the control wheel on the right, and the stop-watch actually work? (I realise the watch does reflect the status of the f3 watch)