I have a MediaServer and I use the collection feature to manage all of my advertisements, it works extremely well until it is time to add new advertisements and remove old ones. Two features that would be extremely helpful would be 1 - the ability to change the order of the items that I have added 2 - the ability to randomize the items that I add to a collection. If those two features were added then the collection would be my favorite item to use on the timeline.