Some sort of read-only toggle for a realm.

[EightBitz]

Again, I don't know how difficult this request is. But if the effort is reasonable:

Say I've set up a structure that I want to use only as a template. I don't want to accidentally add content to it.

Or say I build my base world, and that's my gold copy. I don't want to accidentally load that realm, and run an adventure for a half-hour before I realize my mistake.

Obviously, I would want the ability to edit and update these realms, but having the ability to toggle a read-only mode would be a nice way to help ensure that I edit it only when I want to edit it.