Adding keywords/comments in iPhoto

[superspiffy]

How do add new categories of keywords in iPhoto? I think the 6 default categories of: Family, Vacation, Movie, Favorite, Kids, and Birthdays is limiting. And how do you add comments to the pictures?

EDIT: never mind. Preferences, Keywords tab, "+" button to create more keywords... duh. so simple and intuitive! LOL

 

[TheAnswer]

You add comments in the info window (button with the "i" in the lower left) and keywords in a separate window (which comes up when you hit the button with the key on it). You have to define the keywords in iPhoto > Preferences > Keywords.