Sorry about the resolution thing but the editor won't be changed. World building is really just something extra, it's a small miracle the editor even works.

(It was created by Stewe who left us a long time ago and was not really intended for release.)
In an ideal world, yes, it would be nice if everything worked perfectly in all circumstances but we are just two guys (with me the only programmer). We really have to work on our new game, I hope you can understand.