IdeaAscii is a simple plugin that allows you to easily add comments (typically section headers/breaks) in ASCII text.
Check out the repo on GitHub for more details:
Recent change notes
Updates to IdeaAscii: support for text on current line, indentations, and selected text! Check it out at https://github.com/jonstaff/IdeaAscii.
General usage instructions
Locate your cursor where you would like to add a comment/heading, and press ctrl shift I. Type in the text you would like generated, and hit enter. Your text will be converted to ASCII and automatically commented. Alternatively, you can go to 'Tools > Insert Ascii Comment'. You can change the font by going to 'Tools > Select Ascii Font'. Whichever item you select from the dropdown menu will become the font used until you change it.