Follow the same instructions for installing a foreign language keyboard to install the Character Palette. The Character Palette is only available on OS X.
Starting the Character Palette
To find the character palette, click on the American Flag in the top right hand corner of the menu bar.
This will bring up the character palette
By clicking on the pull down menu next to View you can either select a language, or "All Characters"
For Font Variation and Character Info, click on the arrows next to the words in the bottom left of the palette.
Characters can be added to the favorites menu by selecting "Add to Favorites" from the bottom left corner.
Adding a character
Finally, to add characters to a document, simply double click on the character or highlight the character and click insert, the document or other program must be open for this to work.