Mike@CFAN

Your second comment was exactly what I am looking to do! I set the individual path traveler capacity to 0 and 1 respectively using add on process triggers. Thank you!

This is my first post on Simio forums so please let me know if this is the incorrect place. I have Default (Parent) entities that must go through only one series of combiners for processing the members (ModelEntity 1,2,3) that get attached. At the end of the series, a separator removes all members and the parent entity circles back to the start to acquire new members. No parent entity can start processing in the combiner series while another entity is going through that combiner series. I cannot figure out how to stop entities from entering the first combiner in a series while there is another entity processing in the same series. Ideally I would like to store these parent entities at a location until a series of combiners are free for processing. CombinersInSeries.spfx