To turn off the editors click on the "Hide Editor" button in the top navigation menu.
This will remove all editors from your store.
Turn the editor back on at anytime by clicking on the "Show Editor" button in the top navigation bar.
When the editors are hidden you will see only straight html text boxes. Html or text can be typed directly into the boxes.
To insert html temporarily into the existing html editor without turning it off use the editor tool bar button with the "<>" symbol.