Here is another tip. Please note that is is not necessarily related to the previous tip (I mean, mathy I not shouting at you)
At work, somebody tried to be "smart" and changed the PF1 definition to "HLP". In the REXX that displays the panel, there is some code to view a file when the HLP command is received.
Working with split screen, I always get furious when I receive an invalid command when hitting the PF1 key.
This is the tip: DO NOT DO THAT EVER!
The best and only way to show help files is to put:
.HELP = <help_panel_name>
in the )INIT section of the panel. That's all what you need!
PF1 (the original one) will do all the work.
In the help panel, the only mandatory thing is the )END line.