randomize bgr and jump wgr

[juliaff]

dear jarvis, here is a part of my input file.
I want to randomize between the groups. Though INSIDE a group the first question determines if the other two questions should follow or if the next group should be started.
In this solution, if directRT picks the last group this ends all the questions even if not each group was presented yet.
If you see another approach to get what I want I would be happy as well.