Can we have repeating numeric entries?

Avid Media Composer has a nice feature where, if you enter, say +30;00 on the numeric keypad, and then repeatedly hit enter, the cursor will step through the sequence by 30;00 for each press of the enter key. This is incredibly useful for stepping through long sequences by even increments, or moving even increments down the timeline to paste elements from the clipboard. It should not be too dificult to code, and has great value. I'd love this feature addition.