Black out switch - how to I remove the handle/knob ?

[JohnboyLandy]

Any clues appreciated. I can't see anyway for it to come off other than just pulling it off, but it seems quite stuck on.

Thanks
John

[JohnboyLandy]

I figured it out...push the little spring loaded lug through the hole in the side of the handle, and the handle slides off.

Cheers,
John