Is it possible to "select" some mods to work with certain saves?

[jlcarneiro]

Now that 1.12.2 is out, I may try Kerbalism once again. Problem is, I may even backup my current save but it WILL NOT work with my new set of mods.

Is there a way (a mod? ) to deactivate mods on certain saves? 

[mateusviccari]

Not AFAIK because module manager loads all the modules at startup, and since some modules influence others, you can't disable some of them and expect others to keep working as you'd expect. That's why people copy the entire KSP folder to play the game with different mod combinations.

[DeadJohn]

Copy the entire KSP install to a new folder. You can have different mods, or different versions of the same mod, or even different versions of KSP in each new folder.

[jlcarneiro]

What a shame!

Thanks, anyway!