Thanks for the explanation.
Unfortunately, filtering of notifications by a particular user is not possible as notifications are resource-specific. As a result, they are linked not to a particular user, but rather to a particular resource.
It means that the top account users receive notifications from all their resources and resources of their subordinate users. With this said, we can suggest the following options of filtering:
1) display notification only from the resources where the user is the creator;
2) give ability to select the resource(s) for displaying the notifications.
Additionally, we can give an ability to select the type of notifications to be displayed.
Will one of these solutions address your challenge?
Wialon Hosting Product manager, Gurtam