Turning off the UI?

Is there a way to do it? I looked in the controls menu there is a "close ui" but it doesn't do anything. I know you can go into customize and close everything separately, but that is impossible to do while in the middle of combat.

You can press control+shift+h to toggle the UI.

You can also try editing your command line:

"C:\Program Files\Guild Wars\Gw.exe" -noui

Ctrl + Shift + H will still toggle it back on as needed.