I have some Carttypes:

Intention, Field, Scope related as follows:

An Intention has a field (+field}, which is a pointer to a Field card

A Scope also has a field (+field), also a pointer to a field.

On on Intention, I want the *options to be a search returning The scopes with the same +field value as the Intention.

It seems to have the rules matching, I made it a select with an Intention+scope+*type_plus_right+*input rule, but may search isn't quite right, I have:

{"type":"Scope","refer_to":[{"append":"field"},"_left+field"]}