<anchorref>The <anchorref> element is used to reference an
<anchor> element in a map. The contents of an
<anchorref> element are rendered both in the original authored
location and at the location of the referenced <anchor> element. The
referenced <anchor> element may be defined in the current map or another
map. When possible, this integration is done when displaying the map with
<anchor> to an end user.
Category: Map group elements