Custom control Editor multi functions

Hello

I’m looking for multi tasks on one widget (or button)

is it possible? I read about this subject than I just have to select different functions on the right bar.
But I don’t find it

I think about mute input 01 and 02 on one button per example.

the best result is macro : mute off 01 to 10 then wait 2seconds then mute on 01 to 10