Sequential rotation In DoubleClick for Publishers, you can create a sequential rotation by selecting Sequential in the "Rotate creatives" list on the line item's "Settings" tab. See Rotate a sequence of creatives in a line item to learn more. [Term in DART for Publishers] 
Sequential rotation In DART for Publishers, a rotation type that serves all of the creatives within an ad in the order of the assignments. The number at the far left of each assignment determines this order.