Office add-in ribbon button
<p>I'm trying out the new style JavaScript based office add-ins and can't see how I can add the add-in launcher button to the ribbon.
I know that Command add-ins which can add tabs etc are not released yet, I'm just talking about a button that will launch my add-in.</p>

<p>It's a TaskPaneApp.</p>

<p>It seems to be possible because (in my version of office 16 at least) I can see that under the Insert tab, Wikipedia add-in has it own button in the Add-In group.</p>

<p>Currently I've just added a Shared Drive as a trusted location and am launching the app from there.  As this is an internal app, it's likely to stay there.</p>

<p><a href="https://i.stack.imgur.com/5ncsN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5ncsN.png" alt="enter image description here"></a></p>

<p>Thanks</p>