The main feature that is necessary for generating RWT buildings is the ability to generate buildings based on floorplan points (extrude it).
When I last (in November 2018) use this asset, it did not have this feature.
At least I could not find it.

If you know how to generate buildings using this asset based on floorplan points, I can review it again.

You can use CScape buildings with Buildings / Instantiate Prefabs features.

Hello.

I bought this asset and it's just a set of buildings.
This is not suitable for use in RWT.

Would you be able to revisit your stand on cscape ?
Its actually not just a set of buildings. The buildings are created in editor from a template and the width/depth/height are dynamic. So you could take a cscape building template place it at a location as you would with rwt internal generator, and then just set the appropriate width/depth/height for the building and the mesh will be generated by cscape.

I bought this asset and it's just a set of buildings.
This is not suitable for use in RWT.

https://www.assetstore.unity3d.com/en/#!/content/86716

not cshape but cscape

i create a small script for duplicate building cscape to pos create by built in.

thank

Unfortunately, I could not find any info about Cshape.
Please send us a link to this project.

if you cannot this
can you add a function for create a empty objet to center of building (extract from osm)
after i can move cshape building to the correct position (script by myself) and correct this
thank for your help