Questions: Learning magic for PC's 12-16

Hello all, its been years since ive been here but I have several questions...

1) I was trying to find out if there are any hacks out there that grant the last 4 PC slots full magic learning menus like the rest of the team. If I recall, even if you give the assigned character in those slots the magic command they still cant learn spells but can equip the espers.

2) In addition to this, is there a way to make more than one actor learn lores or blitzes or at least change which one does? OR is it the pc slot itself that is the 'learner' if someone knows itll help save time.

3) And then battle commands, is it possible to create more "free spell" kind of commands without writing over something used? by "free spell" i mean Shock and Health.

See I plan on a hack making some of the npcs into mercenaries:
Katrin - Blue Mage
Vargas - Monk
Zigfried - Swordtek
Daryl - (for her skill I want that move "Hyper Drive")