yeah, it confused me at first. I am still getting use to the whole thing, like Subpatches wont work with polygons that dont have 3 or 4 sides which messed me up since I didnt know.
well I can fix the ones that dont have 3 or 4 side, I just have to spilt them into more polys that are 3 or 4 sided. Just by useing the knive tool well.