@DBagnall
Don’t the Altitude slider show imperial units ?
Here is the example of the slider in the mobile app which show 5000 ft for 850 hPa and 1500 m.
Or do you need also pressure levels in inHg ?
[image: 1685864702602-711a1965-0f9b-499a-8e4e-76a099f1f4aa.jpeg]