I am currently running Vanilla Sins v1.15.
I've heard that it's possible to play Vanilla Sins that contains both versions 1.05 and 1.15. How can I do that?
The main reason why I'm asking is because I want to use v1.05 mods and v1.15 mods. Not at the same time, of couse, but so I can switch between them. For instance, 7DS (v1.05 only) and Celestial Bodies (v1.12+).