Please add global search to the hub's admin UI.
Almost every screen (Rooms, Devices, Apps, etc) have their own search bar, but it seems far easier to use a global search than to have to remember where things are. Also useful to detect naming collisions and notice things you forgot about a long time ago.
Working prototype below, built using the TamperMonkey Chrome extension:
For those who feel adventurous, you can install the TamperMonkey extension (sounds scarier than it is) and add the script found here: