In this chapter, data management techniques are introduced for projects in a more advanced stage. Project items can be linked with relationships and see-also-links when most data files are imported and coded. These tools allow the researcher to make internal linkages of data fragments visible in the analysis. The chapter also introduces the different Sets a user can create. In addition to grouping project items with folders, NVivo allows (virtual) data to be grouped using static or dynamic sets. Static sets are groups with a fixed group of project items. In contrast, dynamic sets have a query on the data underlying the grouping, allowing the set to be updated as new files are imported or new data is coded.