Make un-assigning a number less cumbersome

I've had several scenarios where I needed to un-assign a particular number from a user and return it to our pool of available numbers. Currently, in order to complete that process, I have to:

Create a temporary extension. > move the number to that temporary extension. > then delete the temporary extension.

The process takes about 7 clicks too many. It seems like there should be an "un-assign extension" option that I can click in my options menu.