Understanding the Display Tree
The display tree presents the sections and fields of the report in a hierarchical tree structure. You can show the display tree and then either dock it or float it over the design workspace. The display tree presents the sections that are included in the report, as well as the objects that are associated with each section, including invisible fields. The highest component of the tree indicates the name of the report. Under the report name, the system displays the sections of the report in the order in which they were created.
When you expand a section, the system displays a Fields folder. Expand this folder to view a list of objects that are included in the section. Tabular rows and cells do not appear in the display tree. If you expand the Fields folder of a detail section, two entries appear for each field; one entry represents the constant (header portion of the field) and the other represents the variable (data portion of the field).