To have group sections on each physical page, you can set the GroupHeader/FooterSection
If the group's sections contain a Table/List/Crosstab
item you will have to consider the possibility of horizontal or vertical paging which may occur - Understanding Pagination
I hope the above information is helpful.
Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.