the animated queues(i.e., the three green limes around the server objects) by default have the entities oriented in the same direction as the entities are traveline.
One has the ability to modify the orientation within the queue as specified in Table 1.1. Select the Processing.Contents queue and Click the Point or Oriented Point button in the Appearances ->Alignment section as seen in Figure 1.7. You can use Inline for the InputBuffer.Contents queues.