Greasy Fork

Hello everyone!
Can anyone help me here, I can't find the answer.

There's a input class where I can change the value inside, but can't confirm that value change to make the value actually makes something.
It's like a book that has pages, and I want to skip some pages instead of going thru all of them until I reach the one I need.

The HTML that I have access is in the image attached.

I'm still a newbie when using Greasy, so help me please!

Managed to do it. I don't know how to delete or edit this post, so I'll just leave it here.