Showing markers and geojson layers at a height above the plane

[pietervdvn]

Hi,

Is there a way to show that a marker is actually on a height?

For example, this AED is actually located on the 7th floor. It would thus be nice that, if the map is pinched, the marker would show on the 7th floor as well.

[HarelM]

See the following proposal, feel free to better define it so this can move forward.
maplibre/maplibre-style-spec#62