New to Grasshopper, how can I make this entrance with hyperbolic paraboloid?

I am new to Grasshopper and would like to make this entrance of the Reggio Emilia AV Mediopadana railway station. I tried to use hyperbolic paraboloid surfaces, but I can’t seem to do it right. I tried to find a tutorial that would match, but I could not. Can anyone point me in the right direction? Thank you very much for the help.

Can you post your grasshopper file, it makes it easy for us to see what you have done and what we might be able to help you with.

Here is the grasshopper file. I would be very thankful if someone could help out… Thank you (23.0 KB) (23.5 KB)
And if you want canopies for every period of sine wave along the facade… (28.0 KB)

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Thank you very much!

This helped me a lot to understand how it is made and how it works!

I was also wondering if I could possibly redo the model where I generate a surface with the roof curves and use commands such as Divide Surface and Isotrim? I have to redo it with this method but I can’t get the same result as the one I have made before.

Thank you for the help! Since I am new to the programm I am kinda struggling to understand how to use certain commands.