how to I type a line over an o in the word Puako?

Select that character in the Character Pallet.

x6551x wrote:

how to I type a line over an o in the word Puako?

Edit > Special Characters > View = Roman > Tab = By Category > Accented Latin

Also you can activate the US Extended keyboard layout in system prefs/language & text/input sources. A list of the shortcuts can be found here:

http://homepage.mac.com/thgewecke/diacritics.html