Custom player skins?

Is there an easy way to implement an easy solution for players to add custom skins to a game made with UE4? Such as, have the game look for new player models in a specific folder?

And if so, is there any way for the server to send any custom skins to connecting clients? I’m thinking along the lines of GoldSrc or Source where the client is able to download custom content when joining a server if they don’t have it.