FF6LE Rogue CE / Zone Doctor CE

Really enjoying this one, nice work!

How does the Event Script Editor determine how much space it has left for a single script? Is there a way to tell it to "just do what I say" upon saving?
Asking because I'm making a small hack for a friend's birthday and significantly expanded the first "guard" interaction in Narshe (at X/Y 38/38). Since the only other script I care about (the "we can't go back" thing) is before that and the other ones are unused, I removed them from the map and wanted to use the space that's now dead code. But the script editor doesn't like it, because it says it's running out of space.
After overwriting a few bytes of the next event with 0xFD NOPs (with a 0xFE RET at the end to play nice) in the hex editor and restarting the script editor, it correctly showed the NOP-padded script, but did not want to allow me to use all of its space - I had to remove a few NOPs to be able to save it (though it did allow me to use more space than before).

It's not really a problem, in the worst case I can always edit it in hex, just a bit confusing.