A subsystem uses the signon display file that is specified in the SGNDSPF parameter
of the subsystem description to create the signon display at a user workstation.
To change the signon display file from the default (QDSIGNON) to one that
you have created, use the character based interface.
Note: Use a test version of a subsystem to verify that the display
is valid before attempting to change the controlling subsystem.
Command: Change Subsystem Description (CHGSBSD)
Specify the new display file on the SGNDSPF parameter.
Example: The following changes the signon display file for
subsystem QBATCH from the default to a new file called MYSIGNON.
CHGSBSD SBSD(QSYS/QBATCH) SGNDSPF(MYSIGNON)