Hierarchical Nav just to Main Controller in Apple WatchKit 2
<p>I am building an app which moves between a set of controllers using:</p>

<pre><code>self.pushControllerWithName("Scene A", context: nil)
</code></pre>

<p>Calling this will create a Back ability at the top that is ideal e.g. Main Scene -> Scene A -> Scene B -> Scene C, however how can I pop the whole stack back to Main Scene from Scene C in a "pop to beginning" type call?  The only function I can see is this which only goes backwards one step.</p>

<pre><code>self.popController()
</code></pre>