))) how the PSG in all our VRT's is set up. Please post me in the right direction.

I think it's great that we've raised the level of interest and detail to the questions that you've asked. Likely many people didn't realize how a pedal steel is played at all until they saw these videos. For example, it is now obvious that the left foot controls the 3 pedals affecting tuning, and the right for controls volume. And the knees control the knee levers,

He is playing a typical pedal steel, which is a standard Nashville E9 tuning, 10 strings. Classic Country music is almost always played with this setup.
The standard Nashville E9 tuning for ten string pedal steel guitar is low to high...
B-D-E-F#-G#-B-E-G#-D#-F#
Three pedals to change pitches. Four knee levers to change pitches. This is the most common Nashville pedal steel setup for country, and you can see lots of videos on how they work, for example here. https://www.howcast.com/videos/512259-how-to-use-the-knee-levers-pedal-steel-guitar/

Note that the music is also transcribed so you can see exact notation of what is being played (not tab though). You can also make a video with the pedal steel video and the notation, and it works with any chord progression in any key.

Have Fun!
Peter Gannon
PG Music Inc.