Get data inside an ng-repeat from an directive outside of it

I'm developing a mobile application using Ionic Framework based an AngularJS.

On one directive I'm looping over a JSON Array with ng-repeat applying a condition with ng-if, see below:

<ion-content class="has-header has-subheader" >

<ion-slide-box">
<ion-slide
    ng-if="invocation.title_id == titleid" 
    ng-repeat="invocation in invocations" >

    <h3>{{invocation.id}}</h3>
    <div ><h1>{{invocation.invocation_frensh }}</h1></div>
    <div ><h1>{{invocation.invocation_ar}}</h1></div>
    <div ><h1>{{invocation.invocation_franko}}</h1></div>
    <div ><h1>{{invocation.comments_fr}}</h1></div>
    <div ><h1>{{invocation.comments_ar}}</h1></div>
  </content>
</ion-slide>
</ion-slide-box>

<p>{{invocation.id}}</p>

</ion-content>

The point is that on the last p nothing is shown.

I understand that the $scope is not the same but on the last "p" or any other component outside the ng-repeat I need to have the same data in order to interact with it.

For exemple I want to add a button on a footer that gets the "{{invocation.id}}". If invocation.id equals 3 inside the ng-repeat "h3" I want to have it equals 3 in the "p"

How can i do it ?

Thanks for you help

Edit: In fact I want invocations[index].id in the 'p' outside of the loop, where index equals the displayed slide.