re: Garage door storage

Thanks LBD however the alternatives have limitations also.   Moveable frame, big feet easy to trip over or easy to tip the frame over i.e. high center of gravity.   frame fastened to ceiling or sides blocks the door if a need comes to.open the door.  
As presented it  is a test run not a profound final solution. 
One slide lock is behind a sled, makes it a reminder that a sled on each side must be moved to get to the locking slides.   No reminder to lock before replacing all the hangers though.   Appreciate your observations and thoughts.