How can I apply scatter data on top of a surface contour?

[tasosioannou]

Hello everyone,

I have some data that were created from a sensitivity analysis and which I plotted in a surface contour graph.

Additionally I would like to apply some scatter data (from experimental values) on top of the contour surface in order to show where do these experimental values stand in the surface area of the contour.

Could you please help me on this?

I tried various way but I cannot do it, I tried for example to make the graph first as a surface graph, add the scatter data and then move them to the secondary axis and then change the type of the graph from surface to contour. But I still do not see the scatter data (is there a possibility that the scatter data are loaded but they are on the back of the contour graph? Or they are not loaded at all?

I would really appreciate your help on this, looking forward for your answers and thank you in advance for your time and effort on this!

Best Regards
Tasos Ioannou