has lots of information about the level editor
This "fun" video
is also decent if you can stand squeakers. :^) k leaving now
Welcome to the community! It's always nice to have a new member hereto talk to. Hopefully you'll stay with us for a long time.
If you want to make custom interiors for your levels, just be warned that Constructor and Map2Dif (the exporter) are finicky sometimes. I haven't tried it yet, but
might be something you'll want to check out as well.