Not exactly. You could have player profiles - say up to 3 or so - & assign specific quick / auto save slots to each profile. One per profile would be the easiest solution. You could write to the config.ini file or another file which the last active user was so that it can automatically log that player in at game launch & know which quicksave slot to load when resume / continue button is pressed.
By the way it is possible to access & swap between multiple vis (exported builds only) files using Lua script. However I don't know if that would create new save games or not. If you have provided a company &/or game name in the main game tab of the game then probably not as it would store all saves, screenshots & config.ini files in the same folder.