Raise

Syntax:
     raise {plot_window_id}
     lower {plot_window_id}

The raise and lower commands function only for a some terminal types and may depend also on your window manager and display preference settings. An example of use is shown here

     set term wxt 123     # create first plot window
     plot $FOO
     lower                # lower the only plot window that exists so far
     set term wxt 456     # create 2nd plot window may occlude the first one
     plot $BAZ
     raise 123            # raise first plot window
These commands are known to be unreliable.