I just uploaded a new tutorial series that includes complete tutorial of creating a MainMenu and Settings page. It contains mainmenu screen, loading screen, gameplay settings (camera sensitivity slider), audio settings (SFX & Music slider) and an advanced graphical settings. Furthermore, I will also covering up how to save the settings in player’s PC.
https://dev.epicgames.com/community/learning/tutorials/WWLX/unreal-engine-tutorial-series-complete-mainmenu-and-advanced-settings