Hi Buzztone,
I finally figured it out myself, it was not so hard at all it seems.
For people who needs this in the future:
Just create different radio buttons, but give them all the same button-code.
Example:
[radio radio-1 “Option 1 here”]
Enter
[radio radio-1 “option 2 here”]
Enter
[radio radio-1 “option 3 here”]
Enter
[radio radio-1 “Option 4” “option 5” “option 6”]