The SoSci Survey manuel does not use the term "Elementstruktur", so I am not sure what exactly you refer to.
My recommendation would be this manual:
Rotate Pages -> Certain Pages in Fixed Sequence
This, however, is only valid if the content is on 10 different pages (which I assume is the case, given the title of your question). If the content is all on the same page for some reason, the random generator would still be a good start, but the PHP code for the presentation would look differently.