Creating contour diagrams using SNAP

First, the reflectance is calculated as follows using the image of sentinel-2.
Example) y = 100x + 50

Next, a contour diagram is created using this value (y).
I want to create contour lines like hyperlinks.
contour diagrams

I want to perform the above operations. Does SNAP have such a function?

Please let me know if you have one.

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