I am quite proud of this. It took two days of experimental learning with the plugin editor but I now have a tree-view component that displays related records of the same type. In properties you specify the AppType (table) the root record, and the children field and it does the rest. Pictures are below.
I have probably another week of spare-cycle time to finish adding all the settable properties and events, but the hard part is done!
I’ve wanted this for a decade in FIlemaker or Access, which both still can’t do it. Now Bubble can!