Do I need to add every record before the course is complete and I show the plan to others in my community?

No, the objective of the course is to train people in the methodologies of Smart Communities and add as many records as you can to start creating the community plan. The idea of the course is to illustrate what can be done and help prepare a draft that can be used to attract other people in your community to add to that plan. The community plan is always evolving, and this will be discussed as part of the course.