Current questions and answers regarding the map editor.

There already is such a video. It’s very good. Based on videos. I learned from it. Cactus created it, but you’ll have to find the video yourself because I kept it on a broken computer and can’t retrieve it now.

Added 1 minute ago
There are several parts, and everything is shown very well.

Almost everything. You’ll have to figure out some things on your own. For example, the sounds and special effects.