> I'll second what Mike said about TRACEXEC. It's a great tool. It's > not > going to do what you envisioned originally as far as working with two > screens, but you should consider TRACEXEC anyway.
If you do go the two-userids-with-SFS route, also consider SESSION. It allows you to log into one userid, run SESSION <name> PFx, and then you can switch sessions with a PF key. You can have lots of named sessions, each on a different userid. Again, not exactly what you wanted, but enormously handy for those moments when you need to check something on another id without having to start a whole new session.