Add objects to a cast unit

You can use different methods to add objects to cast units. The available methods depend on the objects' material and on the hierarchy you want to create in the cast unit.

To add an object to a cast unit, do one of the following:


To	Do this	Available for
Add an object as a secondary part	On the Concrete tab, click Cast unit > Add to cast unit. Select the object you want to add. Select an object in the cast unit.	Concrete, timber, miscellaneous materials
Add an object as a sub-assembly	If you are adding a custom part, ensure that the Select components (custom objects) selection switch is active. On the Steel tab, click Assembly > Add as sub-assembly. Select the object you want to add. Select the cast unit to which you want to add the object.	Steel, concrete, timber, miscellaneous materials