These are for the Braille focus. I'm not familiar with any other Braille
devices. If anyone knows any more, let me know.
1. Hitting she spacebar and the letter r will get you to the app switcher where
you can dismiss or close out applications that you aren't using on a regular
basis.
2. Spacebar plus the letter N will let you see all of your notifications and
you can use the keys above the notification you want to use. Hope this helps
someone. That's all I have.