Do you want to flip the data itself, or just the labels on the z-axis? Using zscale="-0.002c" works for me to flip the data (i.e. the elevation will look upside down), but not sure if that’s what you want.
I simply want to flip the z axis, (increase with depth), in that case (using the negative value in the z-scale) does flip the data, but the tick label did not show up!.. any recommendations? thanks in advance …Screenshot 2022-12-17 at 17.39.29|682x500