Pane/split selector like tmux '<prefix>+q'

[sdemura]

In tmux, I can do something like <prefix>+q to select panes by number.

I'm interested in getting away from tmux and would love Ghostty to be able to do this natively.

[pluiedev]

Dupe of #3212. Please search before posting.

[sdemura]

I did search, but that ticket does not mention tmux specifically, so I did not find it. Secondly, with 'iterm2', 'cmd+' selects tabs, not splits.