Please try the following steps.
1. Open Bosto Driver and click on buttons.
![How to customize your pen display/Pen Tablet keys How to customize your pen display/Pen Tablet keys]()
2.Set to the shortcut functions you need.
![How to customize your pen display/Pen Tablet keys How to customize your pen display/Pen Tablet keys]()
![How to customize your pen display/Pen Tablet keys How to customize your pen display/Pen Tablet keys]()
![How to customize your pen display/Pen Tablet keys How to customize your pen display/Pen Tablet keys]()
3.You can also set to a combintaion function on the keyboard area.
![How to customize your pen display/Pen Tablet keys How to customize your pen display/Pen Tablet keys]()
Please kindly note that the wheel's function is fixed, and cannot be customized.