If I understand what you are truly asking I believe the short answer is "no", and here is why. You currently have a "Deal" that involves a full price room with free dining. Now, think of any CM discount as also being a "deal". Assuming the normal CM "Deals" are available during your stay they would be either A) 40% off of room and no dining, or B ) 50% off of room and 15% off dining. You could replace your deal with one of these but not suppliment your current deal with one of them (ex. Keeping your free dining while getting the 40% discount on room would not be allowed). The good news for you is that you may very well find that either one of the CM "deals" are cheaper in the long run. I know I have a CM 40% off on a 9 night stay at AoA and it is cheaper than a free dining package.
Yes and no that's what I was asking. The main question is if the CM discount is a "better deal" than what I currently have can my current booking be changed over rather than cancelled. With cancellation, I would have fees due to it being so close to travel date (within 20 days). I pretty much knew discount couldn't be combined with free dining. Thanks