The shelf tool that matches what you did in previous versions is now the RBD Hero Object tool.
With the regular RBD Objects shelf tool, you would want to assign the same name attribute to all of the primitives before the Assemble SOP created by the shelf tool.
Your second crowd trigger doesn't activate for a few agents - maybe you want to use distance to closest point instead of distance to centroid?
You can access an agent's joint positions through either Python or VEX (see $HH/help/files/joint_positions.hip for examples of both).
