Whats a “Breakpoint”?
Using Animator, you can “Set a breakpoint” on some line in your code: then, when you run the program, it halts (“breaks”) at that line. This can be useful when debugging: you can Run up to the breakpoint, then Step from that point on. If you have set a breakpoint accidentally, you can unset the breakpoint via the “Debug” menu (first position the insertion cursor on the line with the breakpoint (by clicking on the line), then use the “Debug” menu).