I am too surprised that no one asked for a proper solution before for creative 1.0. I use verse in my map Frozen Lake. But I am pretty sure the same can be achieved without any verse devices.
I have a few building blueprints ( essentially what I built myself ) and player builds. I too use the explosive device to remove player builds, but the blueprints I can show/hide and reuse. They are not editable and not destructible.
Maybe that is something you can do. You can have blueprints that are more transparent in the edit course.
If you decide to try Frozen Lake let me know. I might be able to join you and show everything, because there have been minor changes since the video.
