Adding Modgens to a Virtual Hierarchy

To add a Modgen to a virtual hierarchy:

Right-click a clone in the clone family and choose Update Clone Families to remove the clone family.
Select one of the virtual hierarchy clone sources and choose Place – Modgen – Create/Edit Modgen.
A Modgen constraint is added to the selected virtual hierarchy.
Right-click the generated virtual hierarchy containing the Modgen and choose Reclone.
All the virtual hierarchies in the clone family are recloned, and each of the members displays the Modgen constraint.