15.64.65.6  Examples   - Assuming you have a plot size of 13 by 10 you may
setup 6 windows, and start with the window in the middle, bottom:
     TD:SET WINDOW 2 of 6
          or...
     TD:SET WINDOW X 2 OF 3 Y 1 OF 2
you may select the next window (Right, bottom) by:
     TD:SET WINDOW X NEXT
          or...
     TD:SET WINDOW X 3
          or...
     TD:SET WINDOW 3
You may set the previous window by:
     TD:SET WINDOW X PREVIOUS
          or...
     TD:SET WINDOW X 1
you may select the last window (right, upper corner) by:
     TD:SET WINDOW 6
          or...
     TD:SET WINDOW X 3 Y 2