When validating our incoming link submissions we often need to add a new category to accommodate the submission. To save time (we get a lot of submissions) we would like to be able to add the sub-category directly from the validate links page. I've attached a few screen shots that might make it clearer.

Now I imagine this is going to have to be paid-for custom work? Does anyone (other than me ;) ) understand what I'm trying to achieve?

Currently...



Which will end up