To circuit equipment in the database, go to
Ribbon: DM Electrical->Devices-> 
Circuit Equipment in Database
Pulldown Menu: DM Electrical->Equipment->Circuit Equipment in Database
Circuit Equipment in Database Dialog Box
Group: A list of the equipment groups in the project. The equipment listed in the Equipment list are all part of the selected group. See the Equipment Project Groups section for more information.
Equipment: Select the equipment to circuit. The Edit button located below the list can be used to edit the list of Equipment Callouts.
Distribution Equipment: Select the distribution equipment to which the equipment will be conntected. The Edit button located below the list can be used to edit the list of Distribution Equipment. The Not Circuited option at the top of the list is used when the equipment is not connected to a distribution equipment.
Circuits: Select the circuit on the distribution equipment to which the equipment will be connected. For panels, the odd circuits are displayed in the left list and the even circuits are displayed in the right list. For all other types of distribution equipment, all of the circuits are displayed in the left list.
Circuit Equipment: Press this button to connect the selected equipment to the selected circuit.
If Not Circuited is selected in the Distribution Equipment list, the equipment will be disconnected from any distribution equipment it is connected to and be left uncircuited.