In your first example, place dot 4 before the braille symbol, which is standing alone, since the usage is shown as an exact symbol. List this symbol on the special symbols page BANA Upadate 2007, Rule VIII 31.d.(10-07)
In the second example, when a symbol is being explained in the text and is identified by name and followed by the print mark, (*) it is not necessary to include the braille symbol or its identifying dot numbers in the braille edition. BF Rule 6.1.a.