Link with Short keys

I use Link with.. alot. But unfortunately you cannot tab your way up to the search field, at least I cannot. That would have been nice, since i use that alot to search for room numbers i my GA's for example.
And even better in my opinion would be a short key like ctrl+F, alt+s or something.

When you have mouse clicked so that you are in the search field and have searched for whatever you wanna find, you then can tab down to select group adress from the list and from there tab your way down to the Link button to confirm. However I would like to have a short key for the Link button also, like ctrl+L, alt+L or something. Or Return - that works for the field were you enter GA-number but not when I've selected a searched GA from the list.
That would be great!