Hi, Sorry for the delay.

In the JSON rule engine plugin provides an option called custom operator. By defining custom operator we can set our own logic and compare any number of attirbutes.

Link for custom operatore: https://github.com/CacheControl/json-rules-engine/blob/master/docs/engine.md#engineaddoperatorstring-operatorname-function-evaluatefuncfactvalue-jsonvalue

Thanks for asking question.