Reordering the media in your Media Groups can be done in just a few simple steps:
Open the Media Group you want to reorder by clicking on its title.
Reorder the media by dragging and dropping the media into the new desired order.
Using the Switch to Media Group pull-down menu will let you switch to a different Media Group.
Click on the Manage icon to return to the Manage Media Group page.
Click on the Return icon to return to the Media Group.