Variable update action (<varupdate> element)
The final type of entry that can occur in the Descriptor listbox is the Variable update entry, which is not a descriptor at all, but rather an action that the macro language allows to occur inside a <description> element.
The Variable update action in a <description> element performs the very same type of operation that it performs in an <actions> element, which is to store a specified value into a specified variable.
For information about creating a Variable update action see Variable update action (<varupdate> element).