I am not aware of an option or workaround in the base sim. See related wishh: Pressure readings (ATC/ATIS/METAR) and airplane instruments need to be location based and interchangeable between InHg and hPa/mbar
I am not aware of an option or workaround in the base sim. See related wishh: Pressure readings (ATC/ATIS/METAR) and airplane instruments need to be location based and interchangeable between InHg and hPa/mbar