Switch/select window by number
windows
// what it does
The prefix followed by a single digit 0-9 jumps straight to that window index via select-window. It's the quickest direct-access navigation when you already know a window's number.
// shortcut
Ctrl + b0...9
// gotcha
Only single digits work — windows numbered 10 and above are unreachable this way; use prefix + `'` and type the index, or prefix + `f`. If base-index is 1, there's no window 0 to select.