You can create up to 20 new diagram types in a System Architect encyclopedia. To add a new diagram type, you rename one of 20 generic diagram types available: User 1 through User 20.

You cannot rename a generic user name to an existing diagram name. For example, the following is not valid:

because “Entity Relation” is already in use.

Once created, the new diagram type has one default property: Description. There is no need to add any other properties to the Diagram, but you can by Adding and changing properties of diagrams.

Once you have created a new diagram type, you can assign symbols to it: see Assigning symbols to diagrams.

New diagram types are automatically added to the All Methods tab of the explorer. There is no current facility to also add them to other tabs.