How to subscribe to property changes on all objects of a given type with WAAPI [closed]

Question

With the deprecated soundframe API, it is possible to be notified of property changes (e.g. RTPC min/max values) via the On<object_type>Notif handlers, although they cannot indicate what has changed, this is often at least better than having to maintain an internal list of all wwise objects, and ensuring that we're subscribed to all the events we're interested in on all of them. Is it possible, or will it ever be possible to subscribe to property or reference changes in bulk, without having to manage object lists internally in this way? I see that this is already possible with name, note and curve changes.