Currently there is no way to clear historic notifications, it would be good to add this functionality.
Linked to this is system messages do not work as expected, as system message should either be present or not. However, when cleared it persists in the notifications and the clearage also shows as a blank entry, which is a poor user experience.
Having the ability to clear notifications would help with this, but ideally system messages should be separate from the notifications, as in whilst it is active it should appear as a banner in the UI as per the documentation and not be clearable by the user and when it is not in place, i.e. the event has occurred, it should not be present, there is no need to refer back to this system message.
