Understand your eraser tools
 | Eraser |
 | Erase Selected Section |
 | Clear the Canvas |
Use your Eraser
Click on the Eraser Tool 
on your main whiteboard tools
Eraser Tool box will appear
You can choose the desired erasing method
You can also check out our video tutorial as well:
For more information, see the myViewBoard wiki:
https://wiki.myviewboard.com/Eraser