actuly uslessfull and not uasable because all player not have mod in appdata is posible change it on window and totali differant on linux and not posible change it on you program only can change game folder.
if i understand you system you make save game folder and change by copy/past or cut/past and is best bad option for reduce disk use & incrise speed action need make multiple mod folder and use sybolic link on game mod folder (syb link add on win vista and on linux before) and you can easy connect selected mod pack with game mod folder with edit syb link
other possibility is find mod location by config-path.cfg in game folder it give config folder
in config folder config.ini give write-data (exemple write-data=PATH__executable/../../) and it give mod folder (exemple PATH__executable/../../mods)
