Banggood Panel Voltmeter Settings and Setup as an Ammeter

I bought this display on Banggood for a project, and was curiuos about the button on the back which lead me to this video and finding out that this panel meter, sold as a voltmeter, can also be deployed as an Ammeter if you use the appropriate shunt resistor. I also figured out how to navigate the menu and what each menu number was.
DIsplay can be found here: www.banggood.co...