What are the Default Settings for the User Defined Keys at the Top of the ECO?
Below you will find the Default Settings for the keys on the top of the ECO when using Unity.

There are eight recessed keys on the top front of the ECO case. The six keys with numbers on them are user-defined keys. This means that you can assign the tools that you want the keys to activate.
To change a user-defined key:
Go to the Toolbox and select Assign Core Keys Menu. Follow the prompts on the screen. The user-defined keys area also accessible to scanners. Scanning through them is an option that you can find in the Access Method Menu.