I'm writing an immediate calculation attribute rule using Pro version 2.6.1. I have a relationship defined between a parent feature and children objects. Whenever the user changes either the parent or any of its children, I need to update a field on the parent feature. Is this possible using Arcade and immediate calculation attribute rules? I've written the rule and it works fine when I change the parent feature, but it doesn't fire when I change the related child objects. Then I began writing a second rule for the child object, but I realized that I would ultimately be changing something on the parent feature, which I do not think can be done using Arcade and immediate calculation attribute rules. The rule would also have to execute whenever a new object is related to the parent or an existing object is unrelated from the parent.