The Symbology Definitions manager lets you add, edit, and remove and manage the symbology definitions that are associated with the model. The dialog box contains a list pane that displays each of the definitions currently contained within the model, a display pane that details the settings for the currently highlighted definition, along with a toolbar.

Note that element types that are not used in the current model are marked with an icon

The toolbar consists of the following buttons:

New	Creates a new symbology definition in the list pane.
Import	Imports a previously created set of symbology definitions. Symbology definitions are stored in a .sym file.
Export	Exports the current set of symbology definitions to a .sym file for use in other models.
Delete	Removes the currently highlighted symbology definition.
Duplicate	Creates a copy of the currently highlighted symbology definition.
Rename	Lets you rename the currently highlighted symbology definition.
Help	Displays online help for the Symbology Definitions manager.

When you create a new definition, all of the annotation and color settings will be turned off. To change the settings for a definition, change the current symbology definition to the one you want to edit in the "Element Symbology Manager" and make the desired changes there (i.e. turn on/off the desired elements, create new annotations and color coding and turn them on or off, etc.).