To modify an asset without changing its assignment to a material, use the Asset Editor. You use the Asset Browser in conjunction with the Asset Editor to edit material assets.
Any asset in the Document Assets collection can be edited. Assets selected from libraries will be loaded into the project for editing.
The Asset Editor opens with no loaded assets.


Assets are saved either in a Revit project or in a library. Assets that are in a Revit project but are not referenced by any material are saved to the Unreferenced Assets library. You can create and edit unreferenced assets during a Revit session as needed. However, you must save your Revit project in order to save any unreferenced assets created or editing during the session.
Assets are saved to the Unreferenced Library using one of the following methods:
You can also save unreferenced assets to the user library, Favorites. In the Asset Browser, right-click an asset in the Unreferenced Assets library and click Add to > Favorites.