Is it possible to have tags on the message notifications that identify notifications that refer to the same thread? Because what I do (and I'm sure others do too) is I click the first message notification which takes me to the relevant reply in the thread, and then I read all the subsequent replies too. When I go back to my inbox, I have no way of knowing which notifications refer to replies I have already read. I just thought that if the notification messages had simple three digit tags (?thread ID) then I could just mark all of the ones with the same ID and delete them. This is helpful if there are multiple replies to multiple threads, all generating PM notifications.
