Trying to find out if this possible and within code. I have a detatched garage which has a 100 amp subpanel it it. 60 amps are being utilized by the garage, lights, receptacles, and at one time had a heater and 220v dryer connected. Dryer is gone and heater is too. I need to know if I can run a feeder 120v line to the garden shed from this subpanel in the garage as opposed to the house main power panel which is father away and more painful to connect.