src/app/instance/varinfodialog.html

<div class="modal-header">
  <h3 class="modal-title">Edit Variable Details</h3>
</div>
<div class="modal-body">
  <h4>Variable Name</h4>
  <p>{{var.name}}</p>
  <h4>Content</h4>
  <div ui-ace="{mode: 'xml'}" ng-model="var.value"></div>
  <h4>Scope Instance ID</h4>
  <p>{{var.siid}}</p>
</div>
<div class="modal-footer">
  <button class="btn btn-primary" ng-click="$close(var)">OK</button>
  <button class="btn btn-default" ng-click="$dismiss()">Cancel</button>
</div>