How to unstack windows I pressed `Mod`+`S` and my windows flatted into a stack of bars. How can I undo this action or expand them back into their original configuration? The best route I found was to individually select each window and to `Mod`+`Shift`+`arrow key` to split horizontally. Surely there's a trick I'm missing?

You can switch between three modes:

* `$mod`+`S` for stacking mode
* `$mod`+`W` for tabbed mode
* `$mod`+`E` for standard mode (aka splith/splitv - the one you seek)



More info on the User Guide.