How to add an "About" topic in a Blank Project

Edition

RoboHelp HTML

Version
RH8

Output

.chm (Microsoft HTML Help)

How do I add an "About" topic (About.htm)? I guess the About topic is present in all templates by default, but I can't seem to find the way to add one when I'm creating a blank project. Is it possible to add an About topic in a blank project?

Thanks for your help!