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.