FF6Tools - Browser-Based ROM Editor

First, Everything, thank you for making this amazing tool.

I don't know if you're still browsing around here. I hope you are. I couldn't find an answer to this in the thread or anywhere else.

-I'm editing FF4-Advance. While the changes that I've made to character level progression (primarily fixing Yang's HP Bug), weapons, and some other things seem to be saved in the browser, they're not saving when I go to save the ROM.

-Most of my map changes are saved, but not all (I remodeled the area around Baron, and while the tiles have changed, the Triggers to enter the town of Baron did not save, yet when I moved the entrance to the Mist Cave north and made the travel area to it longer, this DID save).

-Is it possible to increase the physical size of map screens for enterable areas? Such as making the Towns and Dungeons larger.

-Is it possible to add map screens, and if so, how? Such as making more towns, or more buildings. Or, do I need to cannibalize existing ones and change the pointers?

-Is it possible to add more merchants, or duplicate them?