My eyesight isn't what it used to be, I have trouble sometimes reading the gauges - I use a monitor, not VR.
In the FSX SDK there were two things to help me, a variable list, and the ACE tool. Using these I could make simple digital XML gauges, which I saved in the FSX gauges file. I then edited the host aircraft's panel.cfg file, and added my gauges to a pop-up window with a transparent background, at a nice large sized resolution. When flying, holding down shift and pressing the appropriate number brought up the gauge into view, a nice add-on to have for example is the RADALT gauge when landing helicopters.
Is it possible to do something similar in FFS? If so, could someone do a "Gauges for Dummies" tutorial, I have looked at the SDK, but I have no idea where to start.