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The following table shows the window commands that can be
executed with the mouse or function keys:

 Command                      Keyboard                Mouse
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Open help screen          | F1                    | Use View menu
Open register window      | F2                    | Use Options menu
Toggle source/assembly    | F3                    | Use View menu
Switch to output screen   | F4                    | Use View menu
Go                        | F5                    | Click either on Go
Switch cursor window      | F6                    | None
Go to cursor line         | F7 at location        | Click right on source line
Trace through functions   | F8                    | Click left on Trace
Set breakpoint at cursor  | F9 at location        | Click left on source line
Step over functions       | F10                   | Click right on Trace
Change flag               | None                  | Click either on flag
Move separator line up    | CONTROL-U             | Drag line up
Move separator line down  | CONTROL-D             | Drag line down
Scroll up line in window  | Move cursor off top   | Click left on up arrow
Scroll up page in window  | PGUP                  | Click right on up arrow
Scroll to top of window   | HOME                  | Click both on up arrow
Scroll down line in window| Move cursor off bottom| Click left on down arrow
Scroll down page in window| PGDN                  | Click right on down arrow
Scroll to bottom of window| END                   | Click both on down arrow
Move cursor               | UP ARROW or DOWN ARROW| None
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