I don’t think there is a specific key command for “copy first selected channel channel settings” and “paste setting to selected channels.”
The KC, assuming your mix console is focused, would be whatever copy/paste KC you normally use in the project page.
Is this what you meant or I’m I misunderstanding you?
not sure what you mean either - I just want to paste channel strip settings (like what plugins are loaded and what eqs are used), onto other channels by keyboard shortcut, I can’t seem to find it in the shortcut menu though. so currently I have to use the context menu on a channel strip window (little down-arrow next to track presets in the top right corner) which is weird as almost everyting else can be accessed by keyboard shortcut in cubase