UIX V2 - How to create a previewer inside a dashboard

Hi

We are migrating an "old" UIX app to the V2 framework.

I cannot figure out how to replace our old way of showing a preview in a dashboard

(https://userguide.m-files.com/UI_Extensibility_Framework/Embedding%20Shell%20Listings%20in%20Dashboards.html)

Is it already implemented ? If yes, how to do it ? I double checked the developer wiki but found nothing,..

Thanks !