Update Acrobat 9 portfolio to Acrobat 11 layout

I have an old Acrobat 9 portfolio I would like to convert/update to Acrobat 11 using Acrobat 11 Pro. The info I have at hand is,

"Minor editing is allowed, such as adding or deleting files, and editing filenames or descriptions. You can save these changes in Acrobat 9 format. For extensive edits, you can convert the PDF Portfolio to Acrobat XI, if you’re using Acrobat XI Pro. The layout and colors convert to Click-Through layout with the Clean visual theme. Welcome pages, headers, and color palettes are removed. You can redo headers in Acrobat XI, but Welcome pages are not supported."

Is there anyway to "update/convert" the portfolio created in version 9 Pro to the version 11 Pro format/layout?

Thanks all in advance,

Bob Sloan

Seaspray, Victoria

AUSTRALIA