The Help Mode command turns on the help mode. When a command is invoked while the help mode is on, Source Insight displays help on the command and turns off the help mode, instead of running the command. You can cancel the help mode by running the Help Mode command again.
For example, to get help on the File > Open command, type Ctrl+F1 to turn on the help mode. A message will appear in the status bar to indicate that help mode is active. Now go to the File menu and select the Open command. A help window will open and display help on the Open command.
You can also press F1 while a dialog box is up and Source Insight will display help on the current command.