A sheet index is a centralized and structured collection of sheets in your WorkSet. Sheet index can be useful in creating a construction document set (also called as sheet set or construction set) that contains all the sheets of your WorkSet. You may link any sheet model from any design file of your WorkSet into a sheet index. You can then collectively manage properties of all the sheet models within the sheet index. Sheet numbering rules enable you to define rules to generate sheet numbers for all sheets in the sheet index. Sheets can be organized hierarchically in folders, with the ability to override sheet numbering rules for sheets in each folder. Custom properties can be attached to sheets and placed as text fields in the sheet. Custom properties can also be attached to the folders and the sheet index. An index table for the cover sheet can also be generated from the sheet index. Sheet indexes can also be opened using the Print Organizer for printing. The sheet index is managed from the Explorer Dialog Sheet Index Tab.