web dav

Anyone know how to get a handler to a webdav uploaded object? I followed this to configure via MWS:
https://advantage.webmethods.com/meta/default/wm_xt_discotres_topic/0000005668

This creates a publish then webdav drag/drop type of asset but how do I reference it from say a portlet that I would build with designer - do I need to create same functionality via a portlet to get at a handler and if so I don’t see anything straight forward to do this through the palette