    label-key="buttons_returnToList">
               </umb-button>

               <umb-button
                  ng-if="!page.isNew && content.allowPreview"
                  type="button"
                  button-style="info"
                  action="preview(content)"
                  label="Preview page"
                  label-key="buttons_showPage">
               </umb-button>

               <umb-button-group
                  ng-if="defaultButton"
                  default-button="defaultButton"
  