Print (Available) Extensions / Create extensions by click-through

There exists a Print Extensions module, yes. It is very helpful, for determining what’s taken.
Imagine one could have an option there ‘show available extensions’ with options to create - an (insert kind here) extension , a queue, a ring group, or any other destination that is dialed as an extension. Would something like that be a welcome addition? Or would it need to be a new module (or maybe one like that exists already ?) ?