Thanks for sharing your approach, Ton.

Please document it at www.limesurvey.org/manual/Expression_Manager_Examples for others because the forums gets cleaned up from time to time and it would be a pity to lose your input.

Well, the learning curve is steep because you are doing quite advanced stuff already.

For creating basic surveys my experience shows that with a quick instruction on how to create a survey, group and questions even people who have no previous experience with survey tools are able to create surveys quite quickly.

Now you went directly into Expression Manager, which is definitely the most challenging part in Limesurvey, but also an extremely powerful too that other tools often lack.