Template:Collapsible option

How to manage this template's initial visibility To manage this template's visibility when it first appears, add the parameter...
 * .......... to show the template in its collapsed state, i.e. hidden apart from its titlebar (e.g. 100%);
 * ............ to show the template in its expanded state, i.e. fully visible (e.g. 100%);
 * .... to show the template in its collapsed state but only if there is another template of the same type on the page (e.g. 100%).