Link to Upfront Tab

I've been trying to work out how to link to content in an Upfront Tab element.
Using standard href=......./#... will only open the first tab but not go to the content in the 2nd, 3rd, or subsequent tabs.
I've tried linking to id="xxx", name="xxx"
Even linking to the only opens the first tab i.e 'utabs-object-1469156918699-1198-0'.
I notice that hovering over the tab headers doesn't produce a url.
How can I trigger the tabs to open?