Switch/select pane by number
panes
// what it does
Press Ctrl+b q to show the pane numbers, then hit a digit while they're still visible to jump straight to that pane. It combines display-panes with an immediate numeric selection, letting you target a specific pane without stepping through them. It's the fastest way to reach a known pane in a busy layout.
// shortcut
Ctrl + bq0...9
// gotcha
You must press the digit before the display-panes-time overlay times out — a slow keystroke just dismisses the numbers. Only indexes 0-9 are reachable this way, so it breaks down past ten panes.