The Connect Distribution Equipment in Database command is used to connect distribution equipment to each other without needing to insert them on the drawing.
To connect distribution equipment in the database, go to
Ribbon: DM Electrical->Distribution Equipment-> 
Connect Distribution Equipment in Database
Pulldown Menu: DM Electrical->Distribution Equipment->Connect Distribution Equipment in Database
Distribution Equipment Connections Dialog Box
Step 1: Select the Device to be Connected (Downstream Device)
Begin by selecting the device that is going to be connected in this section of the dialog box. This device is the downstream distribution equipment that is further from the utility. This device is also commonly called a sub-feed panel or a sub-panel.
Generators are not listed in this step. They cannot be connected to other equipment.
Press the Edit button to open the Distribution Equipment Dialog Box for the selected distribution equipment.
Step 2: Select the Source that Feeds the Device to be Connected (Upstream Device)
Select the device that the first device will be connected to from this section of the dialog box under Source. This device is the upstream distribution equipment that is closer to the utility.
Source 1: Make the connection for the first source of the downstream distribution equipment. Available for all distribution equipment types.
Source 2: Make the connection for the second source of the downstream distribution equipment. Available for UPSs and transfer switches.
Source: The upstream distribution equipment that the downstream distribution equipment is connected to.
The Utility selection at the top of the Source list is a special connection option. It is not a distribution equipment that is created by the user. It represents the utility connection that is beyond the definition of the project. Select this option for the utility transformer or any other device that is connected to the utility.
Edit: Press this button to open the Distribution Equipment Dialog Box for the selected distribution equipment.
View Source Device: Press this button to open the Panel View dialog box for the currently selected Source panel. All of the breakers or taps for the panel and their descriptions will be displayed.
Breaker / Tap: All devices will allow you to select Breaker / Tap as the connection type. Select the breaker or tap to connect to using the Odd Breakers / Taps or Even Breakers lists.
Top Lugs: This selection is available for panels, switchboards, breakers, disconnects, and transfer switches that have their Lugs set to DOUBLE.
Feedthrough: This selection is available for panels, switchboards, breakers, disconnects, and transfer switches that have their Lugs set to FEEDTHRU.
Odd Breakers / Taps: For panels, a list of the odd breakers. For all other distribution equipment, a list of all of the taps. The breaker or tap selected in this list will be used for the connection when the Step 3 button is pressed. The top blank entry will be selected for panels when an even breaker is used for the connection.
Even Breakers: For panels, a list of the even breakers. Not used for all other distribution equipment. The breaker selected in this list will be used for the connection when the Step 3 button is pressed. The top blank entry will be selected for panels when an odd breaker is used for the connection.
Change Number of Poles: Press this button to open the Change Number of Poles dialog box and change the number of poles of the currently selected circuit. This dialog box can be used to convert two-pole and three-pole circuits to multiple single-pole circuits. See the Change Number of Poles section for more information.
Set Connection Layer System: Press this button to change the layer system of the selected breaker or tap. See the Layer System section for more information.
Step 3: Connect the Device
After you have selected the two devices to connect and configured the source device connection, press the Step 3 button to make the connection.