Is there a way to block skylight inside buildings?

Thank you MostHostLA. This is really a comprehensive change to have the goal of no skylight inside, but it’s a really cool idea and advise! Thanks a lot! Good ideas.

Just a question: Is there any “volume” in UE4 which affects light for the meshes inside the volume, without having it related to player position? Of course I know Post Proc Volume, but they are player position based. Perhaps Lightmass Importance Volume or any other volume, which can also affect how the meshes inside the volume react to the amount of light they get.