it would be very nice if the "Extract File" workflow task were enriched by an "add all attributes" functionality: by dropping a target into the fields definition area all the attributes of the entity coming from the previous step are added.
This is a good idea. We will add this into our backlog and work on this as soon as we have an opportunity. For the moment, this is not prioritized.
This is in our backlog and would be updated here once delivered.