Key Table: HIMS Braille Sense (with QWERTY keyboard)
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Notes
* Function Key Bindings
  + Function-b: skip blank windows on/off
  + Function-c: cursor show/hide
  + Function-d: display mode attributes/text
  + Function-f: screen image frozen/unfrozen
  + Function-h: help screen enter/leave
  + Function-i: skip identical lines on/off
  + Function-l: learn mode enter/leave
  + Function-p: preferences menu enter/leave
  + Function-s: status line enter/leave
  + Function-t: cursor tracking on/off
  + Function-u: highlight underline on/off
  + Function-v: bring cursor to current line
  + Function-w: sliding window on/off

Default Bindings
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Special Modes
* enter/leave help display: LeftScrollUp+LeftScrollDown+RightScrollUp+RightScrollDown
* enter/leave preferences menu: RightScrollUp+RightScrollDown+LeftScrollDown
* enter/leave status display: RightScrollUp+RightScrollDown+LeftScrollUp
* set display mode attributes/text: LeftScrollDown+RightScrollDown
* set screen image frozen/unfrozen: LeftScrollDown+RightScrollUp

Cursor Functions
* go to screen cursor or go back after cursor tracking: RightScrollUp+RightScrollDown
* bring screen cursor to character: RoutingKey

Vertical Navigation
* go up one line: LeftScrollUp
* go down one line: LeftScrollDown
* go to top line: LeftScrollUp+LeftScrollDown+RightScrollUp
* go to bottom line: LeftScrollUp+LeftScrollDown+RightScrollDown

Horizontal Navigation
* go backward one braille window: RightScrollUp
* go forward one braille window: RightScrollDown
* go to beginning of line: LeftScrollUp+LeftScrollDown

Configuration Functions
* set text style 6-dot/8-dot: LeftScrollUp+RightScrollDown
* set track screen cursor on/off: LeftScrollUp+RightScrollUp

Menu Bindings
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Special Modes
* enter/leave preferences menu: RightScrollUp+RightScrollDown+LeftScrollDown

Horizontal Navigation
* go backward one braille window: LeftScrollUp+LeftScrollDown
* go forward one braille window: RightScrollUp+RightScrollDown

Menu Operations
* go up to previous item: LeftScrollUp
* go down to next item: LeftScrollDown
* go up to first item: LeftScrollUp+RightScrollUp
* go down to last item: LeftScrollDown+RightScrollDown
* select previous choice: RightScrollUp
* select next choice: RightScrollDown
* go to previous menu level: RightScrollUp+RightScrollDown+LeftScrollUp
* restore preferences from disk: LeftScrollUp+LeftScrollDown+RightScrollUp
* save preferences to disk: LeftScrollUp+LeftScrollDown+RightScrollDown

