Other than providing the interface to the CPS, I can't help with it very much. I do know in tests with CPS Lite, there was a way to sell 1, 2, 5, 10 or whatever number of tickets you wanted. I only provide the very basic 1 ticket per sale instructions with the Raffle system.
You might want to contact AWCoding to see if this is still possible in the Pro version. I really don't see them eliminating that ability when you go Pro.