Creating in_memory features for the Geometric network trace tool in Modelbuilder

[SethLoht2]

Looking for guidance on how to create the in_memory flag and barrier features for the geometric network trace tool in modelbuilder. I am able to edit the ESRI example provided on ArcGIS Help 10.1  just wondered how to do this from scratch.  Thanks!!! Matthew Kalcich​ Brian Wiitanen​

[DennisAkins1]

I have an immediate need to solve the same problem.  I can add a feature set to the model but can't figure out how to point it to the in_memory flags or barriers!