Can I add characters to a style e.g. Note:

[Launcher1]

I want to make a Note style, and would like it, when selected, to show the word
Note: in bold, and then the user types in the actual note text NOT bold. Is
any or all of this possible to set up?

 

[Suzanne S. Barnhill]

You can do this using a "numbered" style. For the general principles, see
http://sbarnhill.mvps.org/WordFAQs/QandA.htm.