Announced as part of a new strategic collaboration with Autodesk in September 2022, Twinmotion for Revit is now officially included with Revit subscriptions. In this tutorial, you’ll learn how to download Twinmotion for Revit and use the Direct Link functionality to synchronize your Revit project to Twinmotion with the Datasmith Exporter for Revit.
https://dev.epicgames.com/community/learning/tutorials/vrOk/unreal-engine-new-twinmotion-for-revit-workflow-twinmotion-tutorial