title: Has anyone had any success marking ports available when dragging shapes in jointjs?
body: <p>Ports have the ability to be marked as available when a link is being dragged on the paper (<a href="http://resources.jointjs.com/docs/jointjs/v1.0/joint.html#dia.Paper.prototype.options.markAvailable" rel="nofollow noreferrer">markAvailable documentation</a>).  I would like to have the ports displayed whenever I mousedown over a shape.  Is there any easy way to do this?</p>