Reply To: Add meta data to field settings to identify as relationship field

I am writing my own endpoint.

But i don't need help with the rest api. I need a field setting to be added to the Relationship field so I can distinguish it from other fields. I am using rwmb_get_object_fields to get all fields for an object then trying to single out the relationship fields with an in_array of some sorts. I can do this just fine for groups fields since there is a field setting type => group in that array. I would like something similar in the Relationship field. Just one little key value pair since the field_type key is already taken.