Group designators may be used to assign a value to the attributes of several notes at once. For example, the $Rule:
$Color(children)="red"; turns all the current note's children to red.
Designators may also be lists of notes, either explicit literal string list:
$Color(/config/one;/config/two)="red"; or implicitly computed via a find():
$Color(find($Price>5))="red"; $Color(find($Color=="red"))="red"; or implicitly computed by an expression enclosed in quotation marks:
$Color("collect_if(all, $Price > 5, $Path)")="red"; $Color("collect_if(all, Color == 'red', $Path)")="blue"; In the last example note the need for nested single and double quotes.
See also—notes linking to here: