Adding customers to an already promoted source

Hi All, 

I recently created a new source code that I promoted to an Inhouse list. Since creating those promotions, I've added additional people to that list and want to create promotions for those newly added people, but it doesn't look like I'm able to do that from the Appeals module.

Is there a way to create promotions for these newly added people for a source code that I've already promoted? Thanks all!

David Rosen, Colorado Symphony