Extended stay propane

[Glenn C]

I have 2007 tour 40fd the propane bottle is in center of the frame between both living room slides. The fill valve is on driver side with a electric switch cutoff while filling the tank. On the passenger side slide out I have a hose with a gas valve cut off.

My question has anyone added a extended stay valve for external bottle the area I camp in does not offer propane service?

My bago manual does not address the passenger side cut off valve at all would this be for additional outdoor cook stove or is this inlet for external tank

[Glenn C]

So I found out the valve on the passenger side is for low pressure only