The Insert Meter command is used to insert a meter on the one-line diagram. Meters are for informational purposes only and are not otherwise used.
To insert a meter on a drawing, go to
Ribbon: DM Electrical->One-Line Diagram-> 
Insert Meter
Pulldown Menu: DM Electrical->One-Line Diagram->Insert Meter
Insert Meter Dialog Box
Select Block to Insert: The block to be used on the drawing for the meter.
Layer System: See the Layer System section for more information.
Press the OK button. You will be prompted to select a feeder or bus onto which the meter will be inserted.
Select feeder or bus to insert meter on:
After you select the feeder or bus, the meter will be inserted on the drawing.