Acronym Box: This option will enable the Acronym Box. This button will be added to row four of the visual editor. Usage: Placing a check in the box will enable the button in your visual editor. Unchecking the box removes the button from the editor. Again, we have a redundancy. This button functions exactly like the Abbreviaton button. I'm sure I'll remove one, and rename the other to include both. Anyways, here's a screentshots. The popup window where you insert your text and style. Shows the tooltip with the entered abbreviation.