Grade 2 Braille is a superset of grade 1 Braille. Besides the standard alphabet and punctuation, there are many contractions and short forms. When you select ΓÇ£Grade 2 BrailleΓÇ¥ from the ΓÇ£OptionsΓÇ¥ menu, Brailler opens a floating window into which you can type. As soon as you type a space or return character, Brailler will convert the typed word to grade 2 Braille and type it for you in your document.
To close the floating window (and stop using grade 2 Braille), simply select either ΓÇ£Grade 1 BrailleΓÇ¥ or ΓÇ£Brailler-style typewriterΓÇ¥ from the ΓÇ£OptionsΓÇ¥ menu.