i'm not sure this is the easiest way, but...
after posting the listing, i would click on the 'listings' tab, then click the 'create a similar listing' button, after making sure the drop-down box is displaying the listing you're talking about. then, after that listing page comes up, assuming there's nothing you want to change (ie auction duration, etc.), schedule THAT listing. then i would do that as many times as need be, just scheduling it for different days. basically, you're resaving the same auction as a different one. as i said, i don't know that mine is the easiest way, but it's the only one i could think of! good luck.
