A $reveal widget uses a state tiddler to track the opened/closed state of the widget. Typically, this is a tiddler containing one of two values, such as “yes” and “no”. Depending upon how the specific $reveal was written, sometimes the state tiddler is automatically removed when the $reveal is closed, such as when the $reveal is used to show a popup (with parameters type="popup" state=<<qualify "StateTiddlerTitle">>).
In a shortcut definition, you could use either an <$action-setfield> or <$action-deletetiddler> widget to control the state of a $reveal, as long as you know the name of the state tiddler. If the state tiddler name is generated using the <<qualify "StateTiddlerTitle">> macro, you can find the tiddler using a filter with [prefix[StateTiddlerTitle]] without having to know the specific “qualify” value that was appended to the end of the title.
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