I think that the fibery team has put ‘Entity Views’ feature on hold, and it is lacking some functionality which makes the feature less userful than it could be.
As mentioned in other posts, it would benefit Entity Views to have entity-like behavior, such that they have dedicated URLs and their relationship with the parent entity would allow a collection field view to be filtered based that active entity view.
Below a use case that explains why this is needed. If you have other use cases, please add!
In this case I want support pages to be filtered by entity view. This is currently not possible.
The only workaround as seen in this screenshot, is to create as many fieldview tabs as there are parent entity view tabs. This is not very flexible and also a maintenance problem.