The product exit is used for removing components from the system during emulation. Right-click any system on the top-left panel and then click on the Add Product Exit button to add one. Finally, pick a name for this new element.
In the system tab, you can click on the product exit created to display its properties on the top right panel. There, you will be able to change the delay before removing an item and the area that the product exit will cover.
While the emulation is going on, any item that goes through the product exit will be removed after the specified delay. In the workspace, the product exit is displayed as a small pink cone.