How to use print screen to PDF to print a full page?

I’m having problems to print this page below, I want to print the full page with all the grids. But what can I put in this area of class to do that?   
1 answers

Haven’t use this, but it seems to ask for a container placed around the area to be printed. So if you want to print the whole page then make sure everything is contained in a container. Then add a class to the container via the properties of the container. The name is arbitrary and then add that same name in the properties from the image in your question. I think that will do the trick.