RobotStudio event

Dynamic part generation on conveyor mechanism?

I have a system with conveyor tracking that I've built using RobotStudio. From the samples I've found it looks like you have to attach a part to each work object ahead of time.  Since I want my simulation to run for a while is there a way for me to do this without having to attach 100+ in the Conveyor Setup - Part Sequence/Part Tracking dialog?  Also, just from an aesthetics point of view is there a way to have a part hidden until the robot uses that work object and at that point have it become visible.  Mainly this is to show which work objects were missed and which ones were used successfully.  

-Sean