Trailers can be displayed on the map if they are checked in the panel in the first column.
Trailers can be displayed in unit's additional information if this option is selected in the 'User Settings' dialog.
Trailers can be displayed in the 'Monitoring' panel as a column if this option is selected in the 'User Settings' dialog.
In notifications:
You can configure a notification to get informed when a trailer is bound to a unit or unbound from it.
Using notifications, you can also unbind trailer automatically, for example, when entering the destination point.
In reports:
Many tables (such as 'Trips', 'Geofences', 'Parkings' etc.) can have a column that
displays a trailer if any was bound to the unit on certain interval.
As a part of 'Advanced Reports'
module, you can generate tables for individual trailers and trailer
groups. Two tables are currently available — 'Bindings' and 'Custom
fields'.