The Move Note command can be used to move any note associated with a device on the drawing.
To move a note, go to
Ribbon: DM Electrical->Devices-> 
Move Note
Pulldown Menu: DM Electrical->Modify Devices->Move Note
You will be prompted to specify the note to be moved.
Select device note to move:
See the Inserting Notes and Leaders on the Drawing section for more information about moving the note.