Template:Collapsible option

How to manage this template's visibility
 * Use &thinsp; &thinsp; to show this template in its collapsed (hidden) state.
 * Use &thinsp; &thinsp; to show this template in its expanded (fully visible) state.
 * Use &thinsp; &thinsp; to show this template in its collapsed (hidden) state only if there is another template of the same type on the page.