Notepad++: Reformat paragraph to fit into 84 character width in

I have to write description section in my source code files. I try to fit this into 84 character width. Right now I try to do this manually. This means that when I enter a word into say line 3/15, I then have to fix the text in all subsequent lines so they remain within 84 character width.

Is there a way in Notepad++ that I select a paragraph and then execute an operation that shall format the paragraph such that it will limit the text width to 84 characters in all lines?