Sadly I can't help about all this technical stuff, but I have some other ideas, if you need them. Luckily, one day, some of those will be doable.
- making it so the Back Row modifiers are only applied when at least one party member is in the front row (doesn't make much sense that all allies can get access to the back row ; logic tells me that if nothing is in the front row, the back row becomes the front row... ...if logic can be applied to this row system, that is
)
- expand the magic spell lists... ...I bet this one would be particularly tricky, since you'd have to expand the menus, too
- make weaknesses to status effects display when you use Sense
- remove the less than 30,000 HP requirement for Sense to work (or make this number much higher)
- make the Defend command also halve damage from Magic and Fixed damage, to increase its usefulness
- make it so that you can cast a single magic when you're equipped with the W-Magic materia. I find it annoying when I want to cast only one spell, and the game forces me to cast two (waste of MP). This downside to W-Magic makes no sense
- remove the W-Item glitch, of course
- make the Darkness/Blind status effect work on enemies (this one might be easier through AI editing, though)
- make the Defence and Magic Defence work differently. Since currently they work as a % reduction of damage received (512 being a 100% reduction and 256 being a 50% one), a bonus of 1 or 2 points in Def/MDef is negligible. In some RPGs, when you go from 50 points of Defence to 51 or 52, damage is sometimes reduced from 1000 to 500 or even 200. I love that. It would require a complete overhaul of the characters' and monsters' stats, but it would ultimately make the stats more important and thus, the game more interesting
- make the game consider materias as items, so they can be stolen / dropped / morphed from enemies. I'd love to be able to use the Hojo tool (or the yet-to-be-released Proud Clod that will render Hojo useless) to make a materia a battle reward.
...Mmm, maybe I should create another topic that would list all those ideas/requests, instead of posting them in your thread.