G'day shazapis,
I fly 717-200. Dual IRS/GPS. Our FMS database contains many NDB and VOR NPAs but not all.
The FCOM requires that for a Database non-precision approach one of the two Nav Displays must be selected to VOR to display raw data, but it doesn't specify whether it's the PF or the PNF.
Our Company SOP requires that if the pilot builds the approach, it will be flown in TRK/HDG and V/S or FPA from the MSA.