Save response html form

Hi, i am making get request and the server response body for me is HTML file containing hidden form with values. I need to take one input from the form and save it for a next request where I use it. Can anyone help me with that please i only did saving responce though JSON.

Example of HTML form

I need to save value from input field named __VIEWSTATE for future use. Thanks for ideas ! :slight_smile:

https://gatling.io/docs/current/http/http_check/#http-check-css