Say all is not a proper description of the NVDA key
down arrow command. That command doesn't say all unless you start at the
beginning of a document. It starts to speak or read, from your current
position in the document. Also, say all sounds like an adjustment in
screen echo. The name should be changed to something like read to end, or
speak to end. I don't use a Braille display so I don't know if the command
would be used there. If not, speak to end would be best.
