Besides being able to view existing connections, you can also create new connections between objects.
Procedure
Select a matrix cell between two objects.
Click Create connections. If several connections are possible, the Create connection dialog opens.
Click the connection you want to create, and click OK.
To add a connection that is not displayed, click Add connection types. The corresponding dialog opens.
If multiple connections are defined between objects, this is indicated by an asterisk in the cell in the matrix model. In a matrix model, connections are created at definition level only.
You have created a connection between objects in a matrix model.
Tip
Double-click a matrix cell to open the Create Connection dialog.