Run Menu

The Run menu holds the three commands that start, pause and end a run. Running explains them.

The Run menu open while a program runs: Start, with F5 beside a play triangle, is greyed out; Break, with CTRL+BREAK beside a pause icon, and End, beside a stop icon, are available.The Run menu open while a program runs: Start, with F5 beside a play triangle, is greyed out; Break, with CTRL+BREAK beside a pause icon, and End, beside a stop icon, are available.
Start (F5)
Starts the program when nothing runs, and continues it when it is paused. The toolbar button is titled Start / Continue. It works when a project is open and the program is idle or paused. See Start, Break and End.
Break (Ctrl+Break)
Pauses a running program. It works only while the program runs and is not paused. See Break.
End
Stops the program, whether it is running or paused. It has no key. At a run-time error it ends only the procedure that failed; see Traps.

The menu has no other items. F6 (Run Or Preview) has no menu item; Run Or Preview describes it. The programs that your program starts with Shell are listed in the status bar, not in this menu.