The name of the Webroutine to be invoked to display a page in the prompter window from which a selection can be made. Should be left blank if the prompter_url property is specified.
A Webroutine name must be specified if the prompter_wrname property is specified.
A valid Webroutine name, in single quotes. Click on the corresponding dropdown button in the property sheet to choose from a list of known Webroutines.