Registration, Background Color, removing instructor

I have over 30 courses each with a different access code to a 3rd party platform. I am trying to figure out how to automate the registration process so that when they register the access information for that particular course is sent either to them via email or the confirmation or thank you page.

2. I set the background color for the course to the brand. It is not showing up.

3. I would like to remove the instructor and bread crumbs.

The page I need help with: [log in to see the link]