I have difficulty geo-merging. I can do it, but not very well, and i can only geo merge using the door method. Does anyone want to geo-merge things for me in my later maps? if so, my gamertag is Talann Zar
Learn by doing. It isn't a skill, it just takes patience. Just put a lot of stuff around it to anchor it, and merge it little by little. Trying to go too quickly can make it not want to go in.