3270 or SLU 2-only feature definitions

If you use SLU 2 or a 3270, MFS provides several ways to invoke MFS control functions.

• Program function keys and display device fields defined as detectable by the selector light pen can be defined for all MFS control functions except PAGEREQ.
• The PA1 key is equivalent to, and reserved for, the NEXTPP function.
• The PA2 key is equivalent to the NEXTMSG function.
• The PA3 key, when not used for the copy function, is equivalent to the NEXTMSGP function.
• The PF12 key, or PA3 key on data entry keyboards, requests the copy function. This IMS-supported copy function causes a copy of the currently displayed physical page to be printed on an available candidate printer. This printer must be attached to the same control unit (3271 or 3274, for example) as the display station containing the information to be copied.
  Restriction: The request for a copy function is ignored if the device is not defined to allow the copy function or the device does not support the copy function.

  For more information about the copy function, see the DFLD statement field definitions for ALPHA/NUM and NOPROT/PROT.