After watching the videos, It seems that I will have to create the active and lumped components individually in EMPro then place them on the ADS layout. Will you say that's about right?
You will create EMPro component (passive structures) with ports. You will connect the ports with active and other ADS circuit components, then simulates in ADS. In this case, circuit simulator (HB,AC, Tran, etc) will run with FEM simulator.