Changes

:''X?'':''Y?'':''Width?'':''Height?''

Sets the window location (and size?) for the given message channel. Only useful before calling MES, which has no built-in size parameters. WINSIZE is only used in the first hallway of the game, where Quistis is imitating Squall (and also in some debug areas). Probably, Square's eventers used this a few times, hated how tedious it was, and asked for the AMES family of opcodes to be added, but didn't change the ones they already did. I put question marks next to the parameters because, while I haven't actually tested them at all, I don't see how they could represent any other value.