After lots of trial and error, especially error and lots of it, and reading a few more posts and topics I didn't notice before, I have pretty much found all the aspects I have ever wanted to change about attacks, except if the spell or summon is quadra-magicable or not.
I am quite sure that spell/summon being quadra-magicable or not is not covered neither in attack data nor materia data. After swapping Bahamut Zero's and KoTR's datas Bahamut Zero was still quadra-magicable and KoTR was not. Also materia data for these two summons is quite identical except for level-up AP limits. But then where is that data located?
OT: If after editing some values kernel.bin becomes a few bytes bigger than in the beginning do I get any side effects? I am editing psx version of the game and I import edited kernel.bins back to image file with CDmage. If I manage to get kernel.bin 22382 bytes large (compared to 22381 bytes as it is without any modifications) CDmage welcomes me with the following message: "Import file is longer than the file in the image. Import file will be truncated. Continue?" Can I still use this method when I am having differing file sizes or do I get smited by the angels of coding? Alternatively do I have to use some different, possibly very lengthy, method?
Thank you in advance.