When you have a list of items to include in a document, you can format it as either a bulleted list or a numbered list. Adding a new item to a list will automatically insert a bullet, or a sequential number, in front of the item.
Both numbered and bulleted lists can have multiple levels, letting you put together an outline of topics and subtopics. Any list can be turned into a multilevel list by demoting list items.
Select the list item you want to demote.
Click the Increase Indent button.
The list item is indented, and depending on the list style, the bullet or number may change.
You can indent a list item multiple times to create additional levels.
To promote a list item back to a higher level, just click the Decrease Indent button.