Creo is an Mac OS X application for creative writing. It's been built exclusively with the features you need when writing and nothing else. It offers no distractions, no unneeded formatting, no graphical bloat. Extensive research has been done to make the best possible tool for the job, this is it. Creativity and inspiration are valuable resources, but our brains don't know it - they get easily preoccupied with something else. When you write, you can not afford to lose you concentration or train of thought. The best thing you can do to nurture your ability to write efficiently, is to keep you brains free from other things. Word processors don't help with this, as they offer a plethora of distractions to keep you from getting your job done. Creo offers a remedy for this.
It's not even as useful as TextEdit. Un-Mac-Like. English is not the author's first language so the "manual" (such as it is) is sometimes difficult to follow.
Summary
This tool ias of no use to me. Probably of no use to anyone. It's just a simple typing utility, looks a bit like DOS even. Reminds me of the eighties. Or even the seventies!