Conveyor tracking

Hello, I hope you're all doing well. I'm a RobotStudio beginner and I have a lot of questions to ask. I would be really happy if you help me.
I want to make an object move on a conveyor but at a certain time, the object needs to stop moving so that the robot can test it but I didn't know how to do it.
the conveyor keeps moving and the cobot doesn't even move even after creating the path.
I watched a tutorial about conveyor tracking and tried to follow along but in the tutorial, they were using a robot and not a cobot. 
I couldn't find some action instructions like waitWobj and Dropwobj when I was working with a cobot. 
I'm looking forward to hearing from you! thank you so much.