While we do not offer a pre-built solution for that specific functionality, you can achieve the desired result by following these steps:
From the user’s point of view, it will appear as if the entire form was submitted simultaneously.
(Question #1) Gender:
[ifso_group_selection type="radio" options="Male,Female" ajax="yes" ]
(Question #2) Age group:
[ifso_group_selection type="radio" options="0-18,19-26,27-35,35+" redirect="https://if-so.com" ajax="no" button="Continue" orientation="vertical"]
Gender:
Age group: