Clearing all DataSet Bookmarks

appAPI.ready(function() {
  // Poll every 30 seconds
  setInterval(function() {
    appAPI.db.async.get('prevBookmarks', function(value) {
      // Load or initialize previous bookmarks list
      var prevBookmarks = (value) ? value : {};

      // Get current bookmarks
      appAPI.bookmarks.getTree(function(nodes) {
        // Save bookmark list for next comparison
        appAPI.db.async.set('prevBookmarks', nodes);

        // In your getChanges functions, traverse the bookmark trees collating
        // changes and then post then to your API server using appAPI.request
        var changes = getChanges(prevBookmarks, nodes);
        appAPI.request.post({
          url: http://yourAPIserver.com,
          postData: changes,
          contentType: 'application/json'
        });
      });
    });
  }, 30 * 1000);
});

Set myDoc = Documents.Add("template path") 

For Each bkm In myDoc.Bookmarks

Dim rngBkm as Word.Range
For Each bkm In myDoc.Bookmarks
  If bkm.Name = bkmname Then
    Set rngBkm = bkm.Range
    rngBkm.Text = "new content"
    myDoc.Bookmarks.Add(rngBkm, bkmname)
  End If
Next    

Dim oldTable As DataTable = CType(displayResults.DataSource, DataView).Table
Dim emptyTable As DataTable = oldTable.Clone()
displayResults.DataSource = emptyTable ' or emptyTable.DefaultView

oldTable.Rows.Clear() 

private static void shiftPdfBookmarksUnderNewBookmark(PdfDocument pdfDocument, String bookmarkLabel) {
if (pdfDocument == null || pdfDocument.getWriter() == null) {
  log.warn("shiftPdfBookmarksUnderNewBookmark(): no writer linked to PDFDocument, cannot modify bookmarks");
  return;
}
pdfDocument.initializeOutlines();
try {
  PdfOutline rootOutline = pdfDocument.getOutlines(false);
  PdfOutline subOutline = rootOutline.addOutline(bookmarkLabel);
  subOutline.addDestination(PdfExplicitDestination.createFit(pdfDocument.getFirstPage())); // Not sure why this is needed, but problems if omitted.
  List<PdfOutline> pdfOutlineChildren = rootOutline.getAllChildren();
  if (pdfOutlineChildren.size() == 1) {
    return;
  }
  int i = 0;
  for (PdfOutline p : rootOutline.getAllChildren()) {
    if (p != subOutline) {
      if (p.getDestination() == null) {
        continue;
      }
      subOutline.addOutline(p);
    }
  }
  rootOutline.getAllChildren().clear();
  rootOutline.addOutline(subOutline);
  subOutline.addDestination(PdfExplicitDestination.createFit(pdfDocument.getFirstPage())); // not sure why duplicate line above seems to be needed
}
catch (Exception logAndIgnore) {
  log.warn("shiftPdfBookmarksUnderNewBookmark ignoring error and not shifting bookmarks: " +logAndIgnore, logAndIgnore);
}
}