1. To tick off more than one notification at a time tab on the Edit button on the top left
2. This will then allow you to select as many notifications as you want
3. To select a notification tap on the select buttons on the left side of the screen
4. Once you have selected the notifications you want Click on the Tick off button
5. These notifications will be removed from the app
6. It will also update your iTWOcx Project
