12.16  POSITION 

Case character:
Z=Position control
          0   Save current state in area 1
          1   Restore state in area 1
          2   Save current state in area 2
          3   Restore state in area 2
          4   Save current state in area 3
          5   Restore state in area 3
          6   Save current state in area 4
          7   Restore state in area 4