[GM] Tactical Assistance

[Jin Flaymhart]

Long time no visit. I've been fiddling around with some programs recently trying to make a Tactics (i.e., Final Fantasy Tactics, Tactics Ogre, etc) game. I played that general sort of game made by someone else, so I know its possible to do with Game Maker 7. Danged if I know how though. I've been fiddling with it for a bit, so mostly, I'm curious how to:
1. Differ character control.
2. Create turn based combat.
3. Limit move/attack distances.
4. Creative ai scripts.
Any assistance would be helpful, thanks in advance.