Int 61 Fn 2E  - Atari Portfolio - Enable/disable System Status Line        [b]

   AH = 2Eh
   AL = new state
       00h disabled
       01h enabled
       DH,DL = row,column at which to display

Return: nothing

See Also: AH=00h"Portfolio",AH=2Dh"Portfolio",AH=30h"Portfolio"