I’m not sure what you mean by “can’t get the paper space to change”. Are you talking about where the data shows up in the drawing or the page size or something else? You may find the answer to your question in the Drawings Learning Center. You may also find some information on what you are looking for in our Quick Start Guide.
I would also suggest that as a TPC Connection member, you take advantage of the personalized training options that are available to you.