How do I edit a questionnaire contents based on the answer group

You can make the questionnaire content be conditional on the answers a participant gives to the Background questions.

When your risk item list has been created navigate to the Groups page.

You can add new background questions or add new groups if needed.

When answer groups are determined you can defined content filters for each group by clicking the wrench icon under controls.

You can filter the items, criteria or open questions by activating the slider and choosing relevant contents to that answer group. You can set filters anywhere from just one group in a background question to all groups.

Check out the detailed video about the other content filtering possibilities here: 

(1284) New Inclus Feature: Advanced content filtering - YouTube