How can I use an automation to append (not just set a new value) to fixedVersion without using the "COPY" feature which requires me to pick a "Parent, Eipc, Target, Destination or Current". I want to keep anything that is already there in fixedVersion, and append. But the only way I see to do this, is to use the "COPY" feature to get the value from a known relation, and check the box "Add to existing value".
But I don't have a relationship that is reliable for that. I just want to save the current value and add to it.