Help with routing

I’m following @Hyperbytes tutorial on routing here https://www.youtube.com/watch?v=MEFy69HrlKc

I set the query parameter on the app element.

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but when I go to make the server action I don’t see the option for getting the parameter

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Do I have to make the thing to get the parameter myself?

Very new to Wappler so sorry if I’m missing something simple, thanks for any help.