This allows him to remap the keys by following onscreen prompts. The board enumerates as an HID device, and has a special mode which is accesses by plugging the keyboard in while holding down any key.
You can choose any other key if you want. PowerToys will probably warn you that the key you’re remapping will be unassigned. Click Continue Anyway on the prompt. Your new Menu key should work ...
When Scroll Lock is enabled, though, you can use the arrow keys to scroll the entire workbook page within the window. With the PowerToys utility for Windows 10, you can easily remap the Scroll ...