RobotStudio event

How to choose between several models-[PickMaster 3.44]

Hi.<br>Im developing a HMI with VS and im having some issues trying to choose which pattern I want the robot to pick.<br>I have just 3 items but about 250 models to use. How could i do it ? I thought i could use an UserHook to solve my problem but i dont really know how i should do it.<br><br>Thanks for your time.<br>