The properties grid allows changes the appearance and the behavior of the report and of the controls within it.

Control Picker: A picklist of all sections and controls in the report.
Categorized: Sorts the Properties menu by category. This document lists the properties according to their category.
Alphabetized: Sorts the Properties menu alphabetically.
Filter: Hides fields that are not being used and groups similar fields, such as left margin and right margin, into single settings.