A "Gamepad Tester" within Simple Mode
This would be kind of similar to how the application 'switch hitter' works for keyboards. Think of it as a troubleshooting tool, that displays a live preview of the mouse indicating whether it is working as it should be; outputting the correct keys, mappings and controller input. While also visually indicating what active player slot the mouse is registered as by the computer when recognized as a controller, as a device not registered in the 1st active slot can cause interference with other devices as I have heard from another small company called Wooting with their analog keyboards.
I will admit that the suggestion is derived from another small company's software Wooting, who has made their own fantastic software for keyboards. But I think these ideas could complement the Z and even the TRACER very nicely software side.