continue to recycle question banks until all selections completed.

HELP!

 I have a large number of question bank, some are mandatory and some optional.

 I issue I have is that potentially one of the optional modules could be chosen or 4, or maybe none.

 I have set triggers up to select an optional question bank. My problem is how do I get it to recycle and go back to check if another bank is selected?

 Hopefully this picture explains this a little better?

In the picture taco graphs is the last mandatory question bank. So if they selected Hiab and ADR how would I add this??

 I hope this makes sense?

 Thank you in advance