>>718863684
It let you see other players custom character mods.
Here is an example of activating it.

You're laughing. Mare is dead, and you're laughing.

>>715514796
I use some hair mods and I'm only synced with my FC. They mostly just have slightly bigger tits, bare feet and some job animations. If you want to see those modbeasts you need to seek them out at nightclubs or by joining a big public syncshell.