[Toggle Breakpoint] Command (Run Menu)

: F9

Sets the selected line as a breakpoint or returns it to normal.

When a line is a breakpoint, a breakpoint icon is displayed in the program window left margin.

You can set breakpoints while tasks are running.

If a pseudo-command line beginning with #, a blank line, comment line, a line declaring a variable or label line cannot be a breakpoint, then the breakpoint icon will not appear for that line.