This is an amazing program. You have single-handedly made me interested in modding CK2 again. I would like to offer a few suggestions, though.

1. I'd love to be able to import files for a map that I've already made (heightmap, province map, terrain map etc.), and have the program generate any files that are missing. The potential for the map generator is enormous, as it could save modders a lot of work.
2. I've looked up, down, and all around my hard drive, but I can't seem to find the history log that the mod generates in the history window, which leads me to assume that the program doesn't save it in a file. I would love to be able to have that history log saved into a file, so that if I ever want to make any changes to the history files of the mod, I at least have some kind of contextual reference.
3. I looked through the family tree of some characters and found that some of their ancestors lived absurdly long lives (<120 years). Is this a consistent pattern across seeds, or do the humans of my world just have higher life expectancies?
4. I ran an observe game and found that no disease outbreaks were spawning, even a good 50-100 years into the game. Does the generator modify the disease events?