Notifications
Notifications can be found on the left-hand side of the screen and is indicated by the icon of a bell 
If you have any notifications, this will be indicated by the bell notification icon having a number beside it. |

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Clicking on the icon reveals the notifications. You can see that the two unopened envelopes in this example match the number on the bell icon. You can also see past notifications showing the last 50.
You can clear notifications and mark them as read one by one or all at once. To perform one-by-one notification reading, click on the closed envelope , and it will switch to an open envelope icon. To mark all as read, click on the 'Mark all as read' bar at the top. 
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