angular ui-select-header - workarounds?
<p>I see that ui-select-header (<a href="https://github.com/angular-ui/ui-select/wiki/ui-select-header-and-footer" rel="nofollow">https://github.com/angular-ui/ui-select/wiki/ui-select-header-and-footer</a>) is planned, but I really need a workaround until it is available, any good ideas? 
I would like to add a "Select All" button, to a control like this:</p>

<pre><code>&lt;ui-select ng-model="address.selected" theme="bootstrap"&gt;
&lt;ui-select-match&gt;{{$select.selected.formatted_address}}&lt;/ui-select-match&gt;
&lt;ui-select-choices repeat="address in addresses track by $index"&gt;
    &lt;input type="checkbox" ng-model="address.selected"&gt;{{address.formatted_address}}
&lt;/ui-select-choices&gt;
</code></pre>

<p></p>