You can add entities and links to your chart. The items on your chart represent
        real-world objects and relationships. 
        About this task
The user palette drop-down lists show your current palette
            at the top, other available palettes, and items such as People, Crime, Documents,
            Finance and so on. You also have the option to filter the Entities, Links, and
            Attributes displayed. Choose from Recently Used, Most Popular and Currently on Chart.
            The Links and Attributes menu gain an additional 'Relevant to Selection' option. When
            you select an entity and choose 'Relevant to Selection', all the palettes that the
            selected type appears in are listed, with the exception of the Common palette.
Procedure
To add an item to the chart:
- 
To display the Insert from Palette pane, click the
Home tab, and then in the Palettes group, click
Insert from Palette.
- 
To add an entity, select a representation at the top of the Entities
section, select a palette from the drop-down list, then drag an entity type onto the charting
surface.
Tip: To add multiple entities of the same type, double-click the entity type, then click
                        the charting surface to add entities. To stop adding entities, press
                            Esc. You can add multiple links in the same way,
                        in the Links section. 
 
 
- 
                To add a link between two entities, select a palette from the drop-down list at
                    the top of the Links section, click a link type, then
                    drag between the entities.