Can you add additional frames to an existing Sequence

Thanks, I got it . You have to change the number in the repeat box first. Let's say the original finished sequence was set to repeat 20 times and you completed the sequence. Next night you decide you need 15 more exposures.
I set the repeat box to 35, the double click the progress box and then set the captured frames to the last frame finished the night before, i.e. 20, say ok. The progress bar resets itself to the new count 20/35.
Thanks everyone for the response.
Ed