You have opened a project. You have opened the Settings: Connection numbering dialog (for example via the Options > Settings > Projects > "Project name" > Connections > Connection numbering menu items). Select a user-defined scheme in the dialog Settings: Connection numbering and select the Designation tab. In the Format groups field click (New). Select "Devices..." or "Grouping..." in the Connection group drop-down list in the dialog Connection numbering: Formats.
In this dialog you select one of the devices or grouping values in the project. The connection group is then defined for all connections that are connected to the corresponding function or that have the specified value for the Grouping property.
Overview of the main dialog elements:
When opening the dialog from the "Devices..." entry, the devices in the project are shown in a list with their full and visible DTs.
When opening the dialog from the "Grouping..." entry, the values specified in the Grouping property will be shown in the list.
If you have selected an entry in the list, the DT is displayed here in its entirety or the value for the grouping is displayed.
See also