Export a PDF with Acrobat Layers

Question

How do you do this via scripting? In the normal InDesign PDF export UI, this is referred to as "Create Acrobat Layers" and is only enabled for Acrobat version 6+

Answer 1

That property doesn't seem to do it. Here's the code I'm trying without success:
function ExportAsPDF(inDocumentPath, inSaveDocumentPath)
     try
        app.open(File(inDocumentPath));
        currentDocument = app.documents[0];
          var preset = app.pdfExportPresets.item("[High Quality Print]").duplicate();
          with(preset)
               exportLayers = true;
               subsetFontsBelow = 0;       
            pdfColorSpace = PDFColorSpace.CMYK;
            pdfDestinationProfile = PDFProfileSelector.USE_DOCUMENT;
        currentDocument.exportFile(ExportFormat.pdfType, File(inSaveDocumentPath), preset);
     catch(thisError)
          throw thisError;
As I said before, I'm trying to get a PDF with layers.