Dynamic Page Set
A dynamic page set is a page set that create (at least) one page per item from the XML. An example would be an RDS report where each page has information from the room. The best way to do this is to add a dynamic page set.
From Page Layout →Pages, click the lower part of the "Add page set" and choose "Add dynamic page set":
Click Add to add the layout you would like to use for the RDS report.
Click the small arrow to the right of the "Repeat" to navigate to the room node from XML that each page should get data from:
From the sort option you can define what order the rooms should come in. Click the small arrow to the right of the "Sort" and click add to add a parameter from the XML and set sorting options. The following example is ordered by name and then by programmed area: