Removing some features available through the theme on the course page

I'm using Avada theme for the courses I have set up using coursepress pro.

However I am having difficulty fixing some features with the Avada theme. for example on this page,,

1. There is a big gap between the top of the page and the course banner image. How do i remove the gap.
2. Right below the image, is the course description, "Covers Android accessibility features up to...". I need to show more or remove it. How can i control what is shown?
3. Right below the instructor profile is "View Full Profile". How can I hide "View Full Profile"?
4. AT the end of the page is "About the Author". How can i remove that?