this seems like a vanilla issue, where extra attributes to a vanilla control is requested. please report here https://github.com/robotools/vanilla/issues if you need this urgently a subclass of the nscontrol is necessary to get callbacks for key down.

Okay. I think I do understand. So thank you for pointing out and thanks in [hopefully not indefinite] advance for doing that UFO3 implementation :D

fixed thanks

Great, that will be very helpful! Thanks!

I think this is something for an extension :) and it should not be that difficult to build such an extension

but I don't want to accidentally move side bearings that aren't visible.

Excellent, will look forward to that option.

look in the system prefs http://goo.gl/PvSTK

thanks!