That is exactly what it does. Lets you edit posts as if you are in word or whatever that allows formatting. No cut and paste, no hassle. You have to use Firefox as your browser to do it. It does not work with Internet Explorer. WYSIWYG means what you see is what you get. No HTML know how needed. Click bold to make the highlighted stuff bold, underline to underline, and allign center to do that... etc. Also click add link to add links, add pic to add pictures, etc.
You're the best for helping out an inept computeroid.