I have mods to LSVSUBSC, LSVADD to add an LSV$SUB exit routine, during
with anything can be done.  The routine is called for all lists, but it
is passed the name of the list and the userid@nodeid of the added user.
I use it to support AUTO-AFD/AUTO-FUI keywords.  There is a similar
exit to LSVDEL when a user UNSUBSCRIBES or is DELETEd.  If interested,
let me know.
 
Harry