That's a good point, just told you to hear your opinion. Anyway, Here's how to add level selector manually to your build: In the Sad Satan_Data folder, find MainData2, edit it through text editor, and change "1" for "levelselect". It actually works this way! I noticed how to do it yesterday
Ur welcome! Also I renamed levels from 1 to 9 with a 0 (01, 02, 03...) So they appear in the correct order. The problem is you have to change this on the engine too, so game loads level 02 instead of 2, for example
I'd upload it as a separate mod / patch. Also I know what you mean, I had that in mind, if I do that, base game, clone and DSRG clone are NOT going to be connected in any way. Is taht what you meant, right?