Dragon's Den... It's gonna happen

Before attempting such a big project, I would personally visit the links section to get the event command list and the event dump and after attempt simple event editing by following some tutorials that are available on this very site. Also explore FF6LE or Zone Doctor to get better understanding of some concepts. I have the feeling every answer from me will just produce an additional question from you without any attempt of exploration or documentation/editor understanding.

This is just my humble opinion that may have no value.