I am new to tbh. I am interested in building a tbh for my girl friend, a regular beekeeper who doesn't enjoy lifting supers. One of the things that isn't clear to me from information on the web, is how comb is rearranged over time as the hive develops, and I hear no mention of the use of queen excluders to segregate honey and brood.
Haven't seen a queen excluder design out there either. A couple sites spoke briefly about shuffling bars but in an unclear manner.

Can someone shed light on the above or point me to another website? thanks.