We also need a way To do that to the Exclusive situation of a parameterizable attribute, but nonetheless enable the default assign situation to operate. You'll see how I tackled this underneath. @Kent factors out that Properties aren't needed to encapsulate fields, they might do a calculation on other fields, https://newcommercialpropertygurgaon.blogspot.com/2025/06/ganga-realty-liv-89-ushers-in-elegant.html