No. You can uninsall/install. Most people backup there settings folder when they do this, but that would negate what you are trying to do.
If you've done a lot of work on views, gun convergences and stick/keyboard mapping just tell us more about how far you can get with a plane and we can work from there.
If you are flying offline and it will not let you get out of the hanger, on the clipboard select Options>Arena Setup>Fields and click Standard Settup then Save. This should enable planes at all fields.
If you can get on the runway and need auto takeoff, from the clipboard select Options>Prefrences>Flight and Check the Auto Takeoff box.
If the problem is controls, well thats a little more complicated. Are you mouseing it or do you have a Joystick?
If the problem is with the joystick or mouse, from the clipboard select Options>Controls>Map Controlers and click Default Map and OK.
I think this resets all changes made on your end. I'v never used it.
If your Key Mapping is a mess, from clipboard select Options>Controls>Map Keys. From here you will have to do some figuring. I don't see a way to restore defaults.
Hope this helps