There are two ways to quickly clear all notifications for a client. First is to head to the Clients tab and select the more menu to the right-hand-side. You'll see here the option to 'Clear all notifications'.
The second way is by heading to the view activity area (clients > name > view activity) and clicking this button:
Once cleared, you'll see the unread elements disappear. You can see how many unread notifications there are for the client here:
If you need more help, please contact us on live chat.
Thanks
FITR