I don't know. Ask him. GS simulation would be ideal but FE is easier to manipulate and you can see all of one area at once. Then again if you guys could find a way to use GS's style of mapping that would be too demanding for make rooms and floors to a castle, then that would be awesome. the best part of mapping something out would not only be the visualization, but once made could be reused and a mod could easily use it to draw on and map out where and extra enemies could be. Such as Takoshi's ice clone things or even trap once they have been discovered, It would also help with preventing any god modding if the mod were to have their own personal map to reference, that they planned out before hand. Not that anyone here intentionally godmods.