I agree that having some GUI support might be nice, but thought it was worth pointing out a way to proceed at the moment. Providing feedback on what you find doing so might help with clarifying what might be worth adding to the GUI.
It is also worth pointing out that the Unraid GUI source is available on gitHub, so it is possible for anyone (not just Limetech) to add such a function by working out what needs doing and submitting a pull request. Limetech have final authority but as long as it is purely GUI changes (and thus not likely to break underlying functionality) then it would almost certainly be accepted.