I'd quite like a way of having Materia/spells be learned without player's feeling a need to load up on Materia, but we only have one set of files to work with on PC rather than three discs (or nine, if I remember what I read on Roden's thread correctly) like the PSX version. We do have 7H, though so it's not impossible to buff spells as you go through the game.
As far as learning spells through events go, I don't think I can add AP to a Materia from the field. I can have Materia be picked up with a pre-set amount of AP already on it (there's a Lv.3 Destruct Materia in the dark cave sidequest, for instance) which can maybe offer something.
Thanks for your quick answer!
I guess if I knew that, whenever the author of the mod felt it was time for the player to have bolt 2, I'd receive/win/find a level 2 lightning materia (then maybe later a shop that sells level 2 materia), then I wouldn't need to always have my lightning materia equipped unless I wanted to use bolt or pair it with Elemental materia. Once I get my level 2 lightning materia, I could either save my level 1 materia to raise with AP later or sell them. This kind of system could make a physical tank with slotless equipment much more useable without the regret of missing out on AP.
As for the summons, I really don't know anything about 7H so I'll take your word for it.
From your answer it sounds like something similar to what I imagined could be possible. That's exciting. I'll keep following your progress till I'm ready to pick up a controller again.