Yes, I tried it for you earlier, assigning it to an available key ctrl-alt-O (that way it works even in the description field) and I could do the whole thing with the keyboard, but it took a few keystrokes. From the metadata workspace, when you press the ctrl-alt-O it opens and selects the source monitor, so use the hotkey to go back to the project window, then tab a couple of times to get back in the description field. I didn't post this earlier cause there is a few keystrokes needed, but its all keyboard, no mouse.
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