There's some neat !sb commands right now but one that I think would be very convenient would be
!sb save <slotnumber> <slotname> !sb restore <slotnumber>
idea being to save the existing set of memorized wizard spells in say one of 9 slots (similar to the 9 slots for !qb save) along with a loadout name for identification purposes (similar to !qb save).
The loadout could then be restored using the restore command which would clear the existing memorized spells (similar to !sb empty) and attempt to reinsert the memorized spells, recursing through each level and filling slots (dropping any at the end of each level that are over the current slot limits).
It would definitely make playing a wizard a bit less irritating, having to spend a deal of time redoing spellbooks for new areas can be a bit frustrating and time consuming. Aside from convenience and time saving in that regard it wouldn't offer any gameplay benefits except for expedience.
If its something that you are interested in adding but dont' want to spend the time working on I believe with the simtools module etc I could probably code up the barebones of it leaving the actual database storage/retrieval part of the code up to you guys to finish up.