I just noticed this proposal on the forum:
I think it's very reasonable, as people don't usually care for the
depth but for the fields they can or can not search.
In addition to a better API, for the sake of the Query Parser
something like that will be very useful: I'll need to be able to
figure out how to map the entities to the index starting from the
known (named) queries.
Also this should play nicely with
HSEARCH-638 - Limit graph traversal by @ContainedIn to the minimum
(optimistically scheduled for the next alpha)