In reply to George Mamadashvili.

Thanks for linking those tickets. I'll make a note in the post. For the former, I'd imagine that would fall under the "plugin territory" rules for the .ORG theme directory. I'll bring it up with the Themes Team to see what they think. It could be really useful for doing something like locking a header + navigation menu in place for specialized mobile menu designs.

Either way, it's still nice to have for agencies, freelancers, and others who do client work.