Unity Reflect: How to start with previewpackage

In the package manager previews section we can already download the UnityReflect package.
After importing the package there´s no documentation or scene available to start with, just a prefab named "Reflect" in the "Runtime"-folder. This prefab seems to make the downloadable projects accesssable.
But before that we have to setup a project in Revit before and make it available from there.



My question is:

Will that Revit-Plugin "Unity Sync" in any way be publically available as a trial or similar to play and test?

 

Now that Unity Reflect is available, is there any official thread?