2.2.1 Pull-down Menu Bar
Press F2 to access pull-down menu bar, Pull-down menu bar includes six functions: "File", "Edit", "Run", "Manual", "Parameter", and "Help" (as shown below), select functions by using right/left arrow key (←,→), the selected function will be highlighted and then press ENTER to enter pull-down menu of the selected function.
Pull-down Menu Bar