Creating Ergonomics Simulation in 3DX Ergonomics at Work app

Hello, I am working on simulating two manikins interacting within a lavatory to simulate a wheelchair to toilet transfer. I need to have one manikin pick up and set down another, but the attach tool makes it attach throughout the entire simulation. How would I make the manikin attach at one point then detach later? The get command doesn't work between manikins. Also, I am having trouble figuring out how to set up a simulation in general so if you can point me towards resources or maybe a person who can help me figure it out I would be very grateful.