How can I filter/group/order by related fields in the API DOCS UI?

If I’m working with SQL data and a related table. How do I notate fields from the related table in the Filter, Group or Order parameters to the api URL?

I figured out I can specify the related fields by adding “&RelationshipName.fields=field1,field2&” to the api url, even if there isn’t a box for this in the Api Docs UI. Unfortunately, the same thing doesn’t work for RelationshipName.filter, RelationshipName.order, etc.

Thanks,
Andy

Facing the same issue on my side