is it possible to combine answers — from 4 choices down to 2 choices — age group 21-25 with group 26-30?
Could you provide more details about what you would like to do? What question type are you using to get the answers? What are you going to do with the combined answers? Where is the age group information coming from?
This sound like an interesting problem, but Community members will need more information in order to provide you with a useful answer.
I think you are looking for the option offered by “Advanced Segment” under Report options, which is supposed to allow you to show differences among logic-defined groups. I’m having difficulty getting this to work properly tho…