Can someone tell me where this went?
 
I can't find it. I can find snap time resolution...
 
I used to be able to control the key so that notes snapped to the key and gray lines were notes not in key and you cntrl dragged notes into incidentals.
 
Am I the only one who used this? Is it gone?

Snap To Scale is in the track inspector right column. If you are using an instrument track, make sure to click the MIDI tab.

You rock, Scook!