bmnccrazed

Hi, I have a private modpack on the Technic launcher and I was wondering if I could have multiple accessible builds for my friends to upgrade and downgrade to. For example, I would make a version 1.0 of the pack, then in 2.0 completely change the mods to make it a different pack. I would want my friends to be able to switch between 1.0 and 2.0 so they can play both packs. Any help is appreciated. Thanks.