How to display the title of the page depending on the parameter passed to get?

Question

MODX

There is a category filter that displays the entries corresponding to each category. The filter parameters are passed via a get request in the form ?service="категория1"
How can I make the ?service="категория1"page title h1change to category1, etc., depending on the type?

Answer 1

set fastfield and then do something like:
And it's even better to write the same on fenom.