In this example, the course planner works with control number 5. In this case, he has double-clicked on the control circle to get the "Control Dialog", where he can design the control description for this control. For each column in the control description, the relevant symbol to show can be selected from the "palette" on the right.
Other tabs in the Control Dialog lets you define for example the punch pattern for the control and a textual description to use for beginners courses.
At any time, you can press F1 and get help that is relevant to where you are in the program.