Picker at non-surface altitude

[jalbert]

Might there be any way to make and display a picker for information (wind, in my case) at a non-surface altitude? For information at surface elevation, I can do:

    broadcast.once('redrawFinished', () => {
         picker.open({ lat: someLatitude, lon: someLongitude });
         // Opening of a picker (async)
    });

but is there any way I could set the picker's altitude too, with maybe something like:

    broadcast.once('redrawFinished', () => {
         picker.open({ lat: someLatitude, lon: someLongitude, alt: someAltitude });
         // Opening of a picker (async)
    });

(that above code of course doesn't work, but might there be anything that would?)

thanks very much!
justin