Hello,
I'm looking to do the following on the DDT Food and Money and I was wondering how I would go about accomplishing this:

Adding 2 more blocks of questions  (Ie: so the first will be for 4 sandwiches, the second for 8 sandwiches and the third for 12 sandwiches). So the participant will go through questions with the 7 time delays for each one. So, the current block of questions (for the default of 10 servings) will change to 4 and run through the 7 delays, then the serving would be  8  sandwiches going through the 7 delays, and finally 12 sandwich going through the 7 delays. 

The immediate rewards for each block will be the following for each delayed reward amount block:

• 4 version block (i.e., 4 sandwich  block): 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4
• 8 version block: 0, 1, 2, 3, 4, 5, 6, 7, 8
• 12 version block: 0, 1, 2, 4, 6, 7, 8, 10, 12