Order in menu

In my hack I put all of the Rages in alphabetical order. This is quite easy because of how Rages are displayed in the menu.  I was wondering, could it be done just as easily for characters (like in the shop menu or party select menu), spells, and Espers? Maybe I missed it, but I wasn't able to find a document saying where this stuff is located in the ROM.

If this would require an extensive rewrite of the menu functions, I'll pass. I've just always been a bit bugged by the order some things are listed in that don't make intuitive sense (at least not to me).

Thanks!