Project Magenta Help Needed

On the PM GA IFR PANEL you can select which model that you would like to use. I am using the black panel and it comes with only a limited handful of gauges displayed.

How do I add gauges to this screen, like the gauges used on the remaining 3 models available on PM IFR.

What it is, I would like to add the squared fuel gauge to the panel instead of the round gauge. The squared fuel gauge is available on the 1 of the other models at start up, just not available on the black panel.

So how do I import gauges, can anyone help me?

Kind Regards.

Alex