You have opened a project. Utilities > Master data > Form > Open > [Open] for a form of type "Cable assignment diagram". You have opened the Form properties - <Form name> dialog (Popup menu > Properties on the form in the Pages - <Project name> navigator dialog) and have clicked [...] in the Value field of Connections property.
In this dialog, you control the assignment of connections to connection points in cable diagram forms.
Overview of the main dialog elements:
Source (designation) / Target (designation):
The designations of the connection source and target are stored in this table.
You can store the color or number of the connection here.
The assignment of a connection to two connection points is thus shown as a "three-tuple"; multiple connection assignments are each separated by a "pipe" character.
("Tuple" is a mathematical term representing an ordered combination of objects whose elements have a fixed sequence.)
For a cable, the entry 1;2:red|2;3;|;3;4;blue means:
The red conductor of the cable type connects connection point 1 with connection point 2. The second conductor of the cable type connects connection point 2 with connection point 3, and the blue conductor of the cable type connects connection point 3 with connection point 4.
Popup menu:
The popup menu provides - depending on the field type (date, integer, multilingual, etc.) - the following menu items: