Hi any editor window that you type into which then uses the typed letters as they are shown is a WSIWYG (What You See Is What You Get) editor it is often labelled 'standard'.
The alternative presented in the listing editor for instance is an HTML editor where you type in HTML code which includes all sorts of formatting information. Switching to the standard or
WSIWIG WSIWYG editor shows the result and vice versa.

p.s. sorry about the typo's
