Hello!
We developed a Survey design including four subsets. Person A gets items from 1-60, Person B gets 31-90, Person C gets 61-120 and, that`s the problem, Person D should get 91-120 and after this 1-30.
We want to see, if there are any differences between the group getting the items first and the group getting the items last.
Is there any possibility to design this without copy the first 30 items and write them again on the end?
Thank you for support!

Not that I am aware of.

Oh, so we have to copy all the items and produce duplicates....?
Isn`t there any function to implement Loops, like in questback?

You can try to configure your survey using an ms-excel spreadsheet.
Set your first group using LS admin interface (if not already made), export the survey structure (tab-separate-value option) to have a valid start & sample and... go on!

No, unfortunately there is no loop function in Limesurvey. Questback is a survey package that costs you several thousand Euros in the smallest packages (as far as I know), so yes, there are some differences.