This SLP file for HELP is so good, I just had to include it.
It got passed on to me by Rick Van Tassel. It is designed to SLP either
the unmodified HELLO or the HELLO modified by the KMS modifications.
When applied a ? in place of any keyword identifier is taken to
request a formatted listing of all keywords available at that level.

Hence if a help file looks like

1 FOO
...
2 key1
....
2 key2
....
2 key3
....
1 BAR
...
1 PIP
...
1 UTL1
...
...
1 UTLn
....


then HELP ? would produce a listing of the format

FOO BAR PIP UTL1 UTL2 UTL3 .....
... UTLn

and HELP FOO ? would produce

key1 key2 key3


The one restriction with this is that matchalls '#', are not handled
correctly.

This feature will be expanded for use with RSX11M V4 HELP processing to
include the ability to automatically produce listings of keywords if
invalid keywords are entered.