BRLTTY Help Screen for Albatross models

Front Keys:
Top     go to top-left corner
Bottom  go to bottom-left corner
Back    go back (undo cursor tracking motion)
Cursor  go to cursor
Up      go up one line
Down    go down one line
Left    go left one window
Right   go right one window

Top Keys:
Hlp    enter/leave help screen
Lrn    enter/leave learn mode
Paste  paste from cut buffer
Track  toggle cursor tracking mode
Prf    enter/leave preferences menu
Stt    enter/leave status display
PrU    go up to previous command prompt
PrD    go down to next command prompt
DifUp  go up to nearest line with different content
DifDn  go down to nearest line with different content
PgU    go up to last line of previous paragraph
PgD    go down to first line of next paragraph
RF1    first alternate routing key function
RF2    second alternate routing key function
RF3    third alternate routing key function
RF4    fourth alternate routing key function

Lower Routing Keys:
RF0       bring cursor to character
RF1  ctn  start new cut buffer
RF2  cta  append to current cut buffer
RF3  ctl  linear cut
RF4  ctr  rectangular cut

Upper Routing Keys:
RF0       describe character
RF1  mwp  mark current window position
RF2  gwp  go to previously marked window position
RF3  iup  go up to nearest line without greater indent
RF4  idn  go down to nearest line without greater indent

Left Attribute Keys:
   upper: toggle screen freeze mode
   lower: toggle text/attributes display mode
Right Attribute Keys:
   upper: go up to nearest line with different highlighting
   lower: go down to nearest line with different highlighting

Side Wheels:
   backward: move up by lines
   forward:  move down by lines
Front Wheels:
   left:     move left by characters
   right:    move right by characters
