Hi everyone. I currently have a Braille Lite 2000 and have been considering purchasing a braille lite m20. I do have one question. There is a command in the braille lite 2000 that causes the braille display to automatically scroll. It is the ER-chord (dots 1-2-4-5-6.) Does the M20 have this command? Could someone with this model help? I want to know this because I love this particular command for reading. Lisa