FF6LE Rogue CE / Zone Doctor CE

Ah, no worries, I'm mostly coding it up in the hex editor now (since I'm only using the first two maps anyway, there's a LOT of event code that I can just noop out and overwrite).
I'm pretty sure I've encountered one of the "other" bugs now anyway, because Zone Editor does not show an event even though it is triggered. Managed to find it by searching for a message box, though.

On a different note (and somewhat offtopic, but I just couldn't find any info on it), how does the "Show if memory set" value for NPCs work? Specifically, how can I set/clear these bits in a event script?
They seem to take values from 1E20.0 to 1E7F.7 for treasures and 1EE0.0 to 1F5F.7 for NPCs.