Since copy / paste is used so much in video editing, and since I’m sometimes on a mac and sometimes a PC, in my custom keyboard layout I have 3 as copy and 4 as paste (and shift-3 undo, shift-4 redo).
No hitting control or command, so much nicer. In fact, I’ve moved every keyboard shortcut I use to the left side of the keyboard - and made them all lowercase or uppercase, no command or command-shift nonsense - so my right hand never has to leave the mouse (you can check out my setup here, and a video about them here and a video of me using them here).
I spent years in a CMX online edit suite, so Q is overwrite edit (shift-Q insert).
