Closing windows
When you’re done with a window, close it with Space-w q or :q.
:q is the same command you use to quit Helix — but when more than one window is open, it only closes the current window. Helix itself exits only when the last remaining window gets a :q.
Space-w q does almost the same thing from the keyboard: press the Space key, then w, then q. That’s the window menu, which the next step covers properly — for now, just know that q in the menu closes the window you’re in. (Space-w o is the opposite: it closes every window except the current one.)
There are three files alongside the editor’s exercise.txt: foo.txt, bar.txt, and baz.txt. Work through the checklist: open them in splits, then practice closing windows both ways.