Let's learn how to setup the widgets so you can customise it for your own project. Keep in mind that if there are ever updates to the plugin widgets you will have to make sure you also update your own classes to include the new functionality.
Copy WBP_N00dLobby, WBP_N00dLobbyLoadingScreen, WBP_N00dLobbyHUD, and WBP_N00dLobbyMenu into the example folder
Rename them to WBP_HUD, WBP_LoadingScreen, WBP_Lobby, and WBP_Menu
Update your project settings definitions to point to the new Lobby, Loading Screen, and HUD widgets
Open the Menu level blueprint
Change the reference to your new Menu widget
That's it! You can now modify the widgets in your folder to your heart's content!