@driven said: I can use it as a Shortcut key in the 'mac' version of SU on my iMac running Yosemite... Does Bootcamp remap the keyboard? john Hi John, It's not bootcamp. I've been running sketchup on windows via bootcamp since years. It's something that changed recently that's done this. I can't figure out what. The thing is I can still use the grave key on the mac version when I run it. So it's definitely windows/sketchup issue.

Hi TIG, Thanks for the heads up on the sketchy physics. I did install it & but it broke my sketchup, alas!:( I get an error about undefined method 'extend_object' for 'singleton' & it seems to have an issue with additionalfolders.rb because the message is from the additional folders dialouge even though sketchy physics is not installed to the additional folder but the resident plugin folder in the program files (x86) folder. It might probably have to do something with the 64 bit windows I'm running, ...or not. I guess I'll just wait for the update. Oh,well! I don't suppose I could tempt you into whipping up a ruby for circle stacking, could I? I mean I find your tangent tools quite invaluable in my work process, (so thanks for that) and what I was talking about might be closer to circle stacking/tangent tools than Apollonian circles cheers, flyashy

Thanks Gaieus

Ah, thank you Chris & Rick, after reading your replies I did open up some rubies and tried to figure out what you said, and will give it a go, although I'm more likely to break things than mend them But then, i always liked to take things apart to see what made them tick. Lesse ta.