'Allo hallo. I'm trying to reduce RSI and send more stuff to the keyboard, which I think could save me a bunch of time. Using the number keys to trigger the corresponding items in the current, open shelf, you could have easy-to-make shortcuts for a variety of different tasks while not cluttering up the hotkeys and making the keyboard any more of a minefield.
Is there any command to trigger a variable shelf item? Or perhaps there's a better way.