Purge Nested Families

It purges families nested into your project loadable families.

What does it do?

• It looks into every single loadable family in the project (parent family) which category matches the list of categories below.

• It searches for nested families and types within those nested families. Then it deletes the unused types.

• It searches for nested families and deletes the unused ones.

• Loads the parent families back into the project.

It purges up to one level of nesting (as per the table below) and only model categories, not annotation categories.

Nesting Level		Purgable?
Level 0	Parent Family A	Yes: with native Revit tools
Level 1	> Family B1 hosted in A -> B1 Type 1 -> B1 Type 2 > Family B2 hosted in A	Yes: with Purge Nested Families
Level 2	-> Family C1 hosted in B2 --> C1 Type 1 --> C1 Type 2	No

List of purgable categories:

• OST_CableTrayFitting.

• OST_Casework.

• OST_Columns.

• OST_CommunicationDevices.

• OST_ConduitFitting.

• OST_DataDevices.

• OST_Doors.

• OST_DuctAccessory.

• OST_DuctFitting.

• OST_ElectricalEquipment.

• OST_ElectricalFixtures.

• OST_Entourage.

• OST_FireAlarmDevices.

• OST_Furniture.

• OST_FurnitureSystems.

• OST_GenericModel.

• OST_LightingDevices.

• OST_LightingFixtures.

• OST_Mass.

• OST_MechanicalEquipment.

• OST_NurseCallDevices.

• OST_Parking.

• OST_PipeAccessory.

• OST_PipeFitting.

• OST_Planting.

• OST_PlumbingFixtures.

• OST_RailingSupport.

• OST_RailingTermination.

• OST_SecurityDevices.

• OST_Site.

• OST_SpecialityEquipment.

• OST_Sprinklers.

• OST_StructuralColumns.

• OST_StructuralFoundation.

• OST_StructuralFraming.

• OST_StructuralStiffener.

• OST_TelephoneDevices.

• OST_Windows.