window hide

This removes the current window from the screen. The window continues to exist and functions normally. You can bring the window back to the screen later (“make visible”) with window show.

You can't hide a window that is already hidden.

You can't change the visibility of a window that is unswappable.

You can't hide the last window on a screen.

If you hide the screen's current window, another window will be selected to be the current window.

If you hide the global current window, the global current window will switch to whichever window becomes that screen's new current window.

This function already existed in ircII.