Any 42S means to keep a Global Label hidden from XEQ and other menus?

[Dave Britten]

That sounds pretty good. I would expand on point 4 a bit: it would be ideal if there were two different prefix characters, one which hides only from the XEQ menu, and one which hides from XEQ, solve, and integrate. Normally I put a colon at the beginning of program names if they're meant for use with the solver, to make it obvious that XEQ won't produce anything useful.