Thank you for the replay Bob. Im asking this because i read in DPS's FAQ'S this:
Yes, there are two buying options available for companies looking for a robust digital publishing platform.
Professional Edition enables customers to create one multi-folio app per license. Professional Edition customers who purchase an annual or monthly license can publish an unlimited number of folios within a single app and distribute those folios based on fulfillment bundles purchased."
So for us who already have o Pro licence we can still create single apps with no extra cost.?