I'm trying to find different EventValues (hot values) relevant to the Wacom, especially velocity and acceleration. I remember using Ctrl-H to display a list of HotValues. Now, Ctrl-H always opens the Capytalk Reference (Cmd-H is listed for Capytalk Ref -- I am on a Mac). Capytalk Reference is super helpful, but I'm still on the search for a list of available !EventValues. For example, I had forgotten about !PenRadius.
!PenDown, !PenAngle, !PenRadius, !PenBtn1, !PenX, !PenY, !PenZ, !PenButton1, !PenButton2...
Related secondary question velo and accel, I found that (!PenX smoothed derivative abs) accumulateWithHalfLife: !Tc s, works great. Any EventValues for Wacom accel / velo? e.g. !PenXAccel?