Possible to have a prefix for the entire manager?

[adaviloper]

Firstly, this is fantastic! Thanks! Is it possible to add prefix for all of the positions similar to how we have the modifiers (gapless, full screen, full screen + panel)?

I imagine this working similar to Tmux so that or a sort of leader key where you can press the prefix and this will listen to the next key pressed and position the window accordingly.