Prior to the X series it was possible to define custom tool actions. For example I had the control key and the select tool mapped to velocity so I could easily adjust MIDI note velocities w/o having to faff around w/ the cursor trying to catch the top pixels of the note (which is still a PITA w/ the magic star tool). 
 
I can't find a way to define these custom tool actions anymore in Skylight. Is it gone?

Yes, unfortunately, that feature is gone. Would be nice to see it reappear in a future update.
 
Scott

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Scott R. Garrigus - http://garrigus.com - SONAR X3 Power! - http://garrigus.com/?SonarX3Power
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garrigus
Yes, unfortunately, that feature is gone. 
 

So I thought. Will post it as a request in the ideas forum.