How do I assign the channel "e" function as a controller?

Hi everyone,

I assigned a few controller functions to my CMC PD. The function I cannot find is the channel “e” which opens the channel settings of the one track selected.

there is something like “edit channel setting”, but the problem is:
I am on a midi track which is “connected” to a vst instrument… on the left colomn I have the midi channel, sure AND the audio channel… both have a “e”… what’s the controller name for the AUDIO “e”?

when assigning “edit channel setting”, the window for the midi channel “e” shows up…

Another question:
is it possible to assign the function “mouse click” as a controller function?

Thanks for helping out!