How to make main menu like (Its Assassin’s Creed Chronicles Russia and its made in Unreal)
Im not sure if this is much help. In the market place there is a Multiplayer Lobby Template that has a menu structure. It has alot of code. Might be of interest to check it out. The menu system, and lobby system is pretty neat.
Basically, youre looking at a map that is the menu.
Lobby Multiplayer Template 1.0 in Blueprints - UE Marketplace (unrealengine.com)