ACT Aircraft Manager is a payware program that does the hanger thing. It does it by simply renaming the .air file, which effectively makes the aircraft invisible. No need to move large folders. You can do this yourself, obviously, by simply adding a number or letter or other symbol of your choice. Then simply go back and rename when you want to use the aircraft.
ACT is available at Flightsim.com. Just search for ACT. It has been updated quite a bit lately.