Activate the Connection types tab in the Contents bar. You will see all connection types that are allowed between the symbols in the matrix model.
Enable the connection types to be displayed in the matrix model. If connections already exist between symbols, these are indicated by check marks in the matrix model when you enable the connection type.
Repeat this for each symbol type pair. The Contents bar on the Connection types tab shows symbol type pairs visually separated from one another by a line. To show all connections, right-click any check box, and click Select all.
You have defined the connection types to be displayed in the matrix model. These settings are saved when you close the matrix model. When it is opened again, these settings are active.
Double-clicking a connection type on the Connection types tab opens the Information on connection type dialog. A list of the symbol types between which the connection type can be used is displayed, as well as a list of the model types in which the connection type is possible.