I don’t have this option?
Post editor – Enter the text for your post. There are two modes of editing: Visual and HTML. Choose the mode by clicking on the appropriate tab. Visual mode gives you a WYSIWYG editor. Click the last icon in the row to get a second row of controls. The screen icon just before that allows you to expand the edit box to full screen. The HTML mode allows you to enter raw HTML along with your post text. You can insert media files by clicking the icons above the post editor and following the directions.