To place the newly created cable in a tray, right click on the map and Select Create tray (1). Select the source and destination as the rooms where the racks containing the components connected by your cable are placed.
To edit the tray details and place a permanent cable in the tray, right click on the tray and select Properties (2).
This function enables you to add new cable trays to your network.
Trays contain cables and are placed between buildings or between rooms inside a building. To be able to place a tray, the buildings where the tray begins and terminates need to contain at least one floor and one room.
Enter the tray's data (name, length etc.) and choose start and target room.
After adding the tray by clicking Ok, you can add a cable into it.