Add "linked profiles"

[palapapa]

The Problem

Sometimes I want to have several profiles that only differ in output directories and versions, but all have the same mods, so I can do upgrade with each profile to see which mods I added have compatible versions with that profile. I want to do this because I have a big list of mods I want to play, but some don't support some version and some others don't support some other version. So I want to check which Minecraft version supports the most mods in that list of mods I want to play. Right now the only way to do this is to copy the same profile but change its configuration, but when I add mods to one of those copied profiles, I need to remember to copy the profiles again.

Your Solution(s)

Add the ability to link profiles so that the mod lists of them are shared, but can have different configurations.