Downloading the displayed output

Hi. Good Day
I’m new to this environment. I am not sure whether this question is already is being posted before.
I used a JavaScript to derive depths and the output displays on the Browser well. i wish to download the output with the Depths stored in it. and tried several options like 8bit/16Bit/32bit GeoTiff. But the output data seems to be just tiff/image without elevation data stored in it. Can someone please let me know how to download the displayed output with results (Elevation data).

You are probably trying to download one of the visualised configurations. You have to define the custom script to return values.

I suggest you check the examples here: