Schedule Listings in eBay
With the Listing Manager, you can create an auction campaign where a product (or products) is listed multiple times. The concept of the Listing Manager is to create campaigns easily by means of a campaign template.
As with any scheduled auction, the goal is to target a specific audience. For example, if you sell insomnia supplements, you would schedule that campaign for after midnight hours (so that the auction ends after midnight) to target when insomnia sufferers are most likely to go online looking for some help.
There are 2 ways to schedule products in groups. Detailed info can be found on those 2 pages:
Individually every product can be listed from the eBay Listing Manager multiple times.