Issues importing Revit 18.3 model into UE4.25 through Datasmith

Hi,

I am a regular user of Revit but fairly new to Unreal Engine.

I am following an official Unreal Engine course on importing assets into UE via Datasmith.Course link is as follow:
https://learn.unrealengine.com/course/2820439/module/5966035?moduletoken=UHxxnDLPW8TpqaPOASfZFyRgYhOgr4cQir4S~B6dy3D9RXRINy6RqTtJSe0-ZNec&LPId=0

I am able to import the meshes, however when modifying the .uassets settings, the dialogue box does not have a Pipeline, ScenePreview, AssetPreview, Operation and Details windows, but instead, only have a toolbar and detail window.

Can anyone advise if i missed a step?

Kind regards,

Hugo W.