You can quickly create a list of bulleted items, and then change the formatting of the bullets to other characters, such as diamonds or numbers.
To create a list:
To create the first bulleted list item, press Option-Tab.
To create a list item on the next line, press Return once.
To finish the list and create a paragraph without a bullet, press Return twice.
To change the indentation of a bullet item:
To increase the indentation of a list item, press Tab.
To decrease the indentation of a list item, press Shift-Tab.
To change the formatting of the bullets:
Control-click anywhere in the list.
Choose List from the shortcut menu.
Choose a new bullet style from the Bullet/Number pop-up menu.