Changing

You can easily change the format of a bulleted list by selecting (Format > Bullets and Numbering) (Bulleted tab).
The Bulleted tab deals with single level bullets.
When you want to make changes to your bullet points you do not need to highlight the whole paragraph.
Bullet points by default are paragraph specific for you only need to put the cursor inside the relevant paragraph.

Whatever bullet format you used last, this becomes the default format. ???????????
So the next time you use the Bullets button whatever bullet format you last used will be applied. ????????????