Given that the program FFTpatcher doesn't produce any codes for ENTD edits, I am going to try and edit these manually-
the only issue is I don't know where to look first. I searched ENTD on the site wikipedia, (sent me directly here http://ffhacktics.com/wiki/ENTD (http://ffhacktics.com/wiki/ENTD)) which certainly gave me quite the handy guide around how all of the bytes get used!
but it doesn't tell me where the information for this starts, or in what file it appears in. if anyone knows and could share that would be greatly appreciated! thank you! :)
The files are ENTD1.ENT through ENTD4.ENT in the BATTLE directory of the disc image. Only the current ENTD entry is kept in RAM for any length of time (which is why GS codes for them can't really be generated, at least without a ton of conditionals).