Hello, I recorded (Sonar Platinum) at the same time in the same midi track midi notes for 2 different channels.
Is it possible to edit a specific channel masking the other ones?

I don't know of a way to filter the PRV by channel. Maybe someone else does. I use separate tracks for different midi channels. That makes it easy. You could split it into 2 tracks by channel. I think there is a cal script for that. I'm not at my PC so I can't check right now.

Thanks DRanck I guess it will be better to make as many midi tracks as midi channels used next time!

I've never had the need to do this myself, but I wonder if the Event Filter could help?
https://www.cakewalk.com/Documentation?product=SONAR&language=3&help=EditingMIDI.42.html
 
 

Wow SteveC you found it! The tip is that we have to select events in the piano roll either the filter is not available. Cool, it works! Thank you.
Sum up:
- let say we have a Kontakt multi we play with several controllers. It's more comfortable to assign as many midi tracks as channels/controllers to the multi instruments Kontakt input
- if all is recorded in a single midi track, it is still possible to filter the events.
Super sum up: every configurations works ;-)

Cool!    I'm glad that worked for you.