Current OBIEE Dashboard prompts selections and clearing the selected default is little cubersome.
In some situations it helps to clear the selected prompts and start-over. For that there is a “Clear my Selection” option available in the Page Option.
Sometimes it may also be useful to explicitly put an HTML link just next to the prompts so that it is easily reachable by a novice Dashboard user.
This can be easily accomplished by using a little HTML Text block on the page and put following HTML in the Text block that contains HTML markup