Finalizing basic functions

My goal is the finish the app as soon as possible. So I am know fixing the last few bugs and add the last missing feature that the program should have.
This devlog should just let you know, that the last days were full of deciding what could I do to improve the program and were the bugs are. (Poorly most of this sort of spend time is not count toward the project.)
The provided screenshots shows a thing I am currently trying to do better, the extended settings, because like you see, the design is very bad.