Assembly Manager is a powerful (and optional) tool for managing and changing the project structure after importing. Changes made to the project in Assembly Manager have a real effect on the project. You can use Assembly Manager to change the assembly hierarchy and the project structure to meet production needs.
Open the Assembly Manager module Order Input. Select the project or assembly that you want to modify in Assembly Manager. Select Assembly Manager… from the tree view’s shortcut menu as shown below, or from the Operations menu.