Purge/Delete unused elements

[Alban_de_Chasteigner]

The same question was asked yesterday :

Purge Unused using Python

Hi @ashwinash112, The Postable command works like this : import clr clr.AddReference('RevitAPI') clr.AddReference('RevitAPIUI') import Autodesk from Autodesk.Revit.UI import RevitCommandId from Autodesk.Revit.UI import UIApplication from Autodesk.Revit.UI import ExternalCommandData clr.AddReference('RevitServices') import RevitServices from RevitServices.Persistence import DocumentManager from RevitServices.Transactions import TransactionManager doc = DocumentManager.Instance.CurrentDBDocumen…