How to create, destroy, and switch between "scenes"?

I’m still fairly new in game development(though I have more than 5yrs experience with software development) and just started learning Blueprint. I’m not sure if the term “scene” is the correct word I’m using. But here is what I want to do:

Like in JRPGs, I want to create a persistent “scene” of where you can roam around the “world map”. Then create another “scene” about roaming a “dungeon” where it can be persistent when I enter a “battle scene”. Once the “battle scene” was done, it will be destroyed and will switch back to the “dungeon scene”. If I exit the “dungeon scene”, it can be persistent or be destroyed, then switch back to “world scene”.

Each scene has different gameplay and controls but there are other persistent contents/commands/menu that must be accessible in between these “scenes”. How to achieve this through Blueprint?

camera active and deactive option select…