You can delete connections in the matrix model.
Prerequisite
The connection you want to delete must not have any occurrences in models.
Procedure
Click if the inspector panel is not enabled yet.
Click the relevant cell in the matrix model.
In the inspector panel, select the connection to be deleted and click Delete. The specific connection is deleted.
You can use the filter to reduce the number of connections displayed. If you have entered a filter and change the selection, the filter is reset.
The connection is deleted.
You can delete all connections except those that are used in other models.