This section only applies if your one-line diagram is based upon a Revit model imported using Design Master Electrical RT.
The Edit command is used to change the blocks of distribution equipment and equipment connections on the drawing.
To edit distribution equipment and equipment connections, go to
Ribbon: DM Electrical->One-Line Diagram-> 
RT: Edit Distribution Equipment
Pulldown Menu: DM Electrical->One-Line Diagram->RT: Edit Distribution Equipment
You will be prompted to select the distribution equipment or equipment connection to be changed.
Select distribution equipment or equipment connection to edit:
Specify a distribution equipment or equipment connection. Press ENTER to open the Edit Distribution Equipment dialog box to select the distribution equipment from a list.
Distribution Equipment Dialog Box
This dialog box sets the blocks used for the distribution equipment and its connections on the one-line diagram. The Set Default button allows you to change the default for each block in the One-Line Diagram options section.
Callout: The name of the distribution equipment or equipment connection.
Layer System: The layer system used when the device is inserted on the drawing. See the Layers section for more information.
Do not change the layer directly. If you do, it will likely be changed back at some point in the future. Use this dialog box or the Change Layer System command.
Feeder Layer System: The layer system used for the feeders when the device is inserted on the drawing. See the Layers section for more information.
Do not change the layer directly. If you do, it will likely be changed back at some point in the future. Use this dialog box or the Change Layer System command.
Insert Feeder to Distribution Equipment: Whether the upstream feeder going into the distribution equipment is included on the one-line diagram.
Initial Block: The block used for the distribution equipment itself when it is generated. Changing the initial block does not affect blocks already on the one-line diagram.
Initial Fed From: Whether the feeder is drawn to the top or bottom of the block when it is generated. Changing this setting does not affect blocks already on the one-line diagram.
Upstream OCP Block+: The block for the upstream OCP. <Use upstream distribution equipment OCP block> uses the same OCP block as the upstream distribution equipment. Changing this setting will affect blocks already on the one-line diagram.
Upstream OCP Block 2+: The block for the second upstream OCP. Applies only to distribution equipment with two feeders.
Circuit OCP Block+: The block for downstream OCP. Changing this setting will affect blocks already on the one-line diagram.
Main Disconnect Block: The block for the main disconnect. Only visible if Initial Block is set to <Custom Panel Box with Bus>. Not available if Main Disconnect Type is set to Main Lugs Only. Does not apply to transformers.