code: @Override
  	public void initUpstream()
  	{
  		for (Controller controller : ctrl.getController())
  		{
  			if (controller instanceof Pathway) continue;
  
  			PhysicalEntity pe = (PhysicalEntity) controller;
  			bindUpstream(pe);
  		}
  
  		for (Control control : ctrl.getControlledOf())
  		{
  			bindUpstream(control);
  		}
  	}
docs: Binds the controller and other Controls that controls this control.