Specify symbols and connections
Before creating new objects and connections in a matrix model, you must define the symbols and connections to be used.
Before you add new objects in a matrix model, you must select the symbols to be displayed.
If you want to display symbols in the row header, click the row header. If you want to display symbols in the column header, click the column header.
Click
Display symbols and connections > 
Display symbols. The corresponding dialog opens.Click
Add configuration. The corresponding dialog opens.Enter the first characters in the Enter symbol name field to reduce the number of object symbols displayed.
Click the symbols you want to select.
Click Apply twice.
You have selected the symbols to be displayed in a matrix model.
Symbol types that are not enabled and do not have occurrences in the matrix are deleted from the menu. If you want to delete a symbol type, delete all occurrences in the model first.
Before you add connections to a matrix model, you must select the connection types to be used.
Prerequisite
You have modeled at least one object in the column and in the row header.
Double-click in an empty cell between two objects or click
Display symbols and connections > 
Display connections. The corresponding dialog opens.Enter the first characters in the Enter text to filter field to reduce the amount of connection types displayed.
Move the mouse cursor over the connection type you want to add and click
Show connection in menu.Click Apply.
You have selected the connection types to be used in a matrix model.
You can specify a default connection for the matrix model.
Prerequisite
You have the Designer role.
You have modeled at least one object in the column and in the row header.
Click
Display symbols and connections > Display connections. The corresponding dialog opens.Enter the first characters in the Enter text to filter field to reduce the amount of connection types displayed.
Move the mouse cursor over the connection type you want to specify as default connection and click
Use as default connection.Click Apply.
You have selected the default connection type to be used in a matrix model.
You can specify abbreviations for connections in a matrix model.
Prerequisite
You have modeled at least one object in the column and in the row header.
Click
Display symbols and connections > Display connections. The corresponding dialog opens.Enter the first characters in the Enter text to filter field to reduce the amount of connection types displayed.
Move the mouse cursor in the
Abbreviation for connection column over the connection you want to specify an abbreviation for and click 
Rename.Enter a letter, a number, or a special character as a code.
This connection type will no longer be represented by a check mark in the matrix model but by the character. 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.
Click Apply.
You have specified abbreviations for connections in a matrix model.
You can remove connections types from the list of connection types to be used in a matrix model.
Prerequisite
You have modeled at least one object in the column and in the row header.
Click
Display symbols and connections > Display connections. The corresponding dialog opens.Enter the first characters in the Enter text to filter field to reduce the amount of connection types displayed.
Move the mouse cursor over the connection types where the
Show connection in menu icon is displayed.Click
Show connection in menu to remove the connection type from the list.Click Apply.
You have removed connection types from the list of connection types to be used in the matrix model.
All modeled connections of this type still exist but are not displayed in the matrix.