bitman
That control is not enumerated in the control surface.h and I'm not getting anything from it - perhaps it is not exposed to the surface.
Thank you! I also lean toward that conclusion...
I have thought there is nothing "undocumented" in that API, till by my own mistake I have found useful functionality from not obvious parameters combination and then have found hardcoded but not exposed by current Sonar undocumented commands in MCU plug-in.
My current "have not found" list is (most annoying first):
1) no way to ask for currently selected parameter
2) no way to find what is current ACT in terms of Strip/Rack Synth/FX (but possible to detect it is ProChannel)
3) no way to select a clip on currently focused track, in general no way to move Data Cursor to predictable track (vertically) in case the project has folders.
4) no way to open/close ProChannel view except imitating a key combination (but still no chance to detect either it is opened)
5) no automation rewriting type change from API
6) no matrix control from API
7) (this one) no Bus Input Pan control.