I have both choices available. I had initially thought "activity consists" should be similar to the Conbuilder function, where one can check the player consist, and associated AI consists.
I'm warming up to the idea of using TSRE and Conbuilder as "partners" in order to accomplish the task of creating consists of one's own choice.
I believe that, using this method, I'll be able to accomplish my goals.
Thanks again to all who contributed.
AA