Compressible Flow inside a simple pipe

I need help on multiple areas-
-setting the named selection in Simscale ,
-How to select compressible simulation method in my simulation where in material viscosity is constant in simscale but I want to define it with sutherland law [Variable value]
-How Simscale is generating Mesh automatically.
-If we are interested in pressure results at particular plane instead of velcoity how to look into the results.

Hi there,
Thank you for posting on the forum.
Can you please share your project link?