People want to find "children" of a QML-created object by either ID or objectName. Now "children" is a fuzzy concept in QML since neither QObject-children nor QQuickItem-children are actually fail-safe in finding "everything in a QML document". An approximation that's fairly easy to implement is "everything in a tree of QML contexts". It will tend to produce some false positives: Elements created by instantiating other documents. We can probably live with those.

Since we do already store a linked list of child contexts for each parent context, it would be relatively simple to expose those child contexts and have functionality that searches their properties.