do you mean controls as in keypresses in fs2002 or tags that you name a part in gmax?

Ah well then,
to open doors\ canopy its shift + e, secondary doors is shift + e then tap 2.
Wingfold I have as shift + f.
Tailhook.. shift + t.
Its all defineable through the controls; in fs2002 click Options> Controls> assignments.
I know that some arent defined in the first place- like wingfold, so you got to assign them yourself.

Also, they'll only work if they've been built into the aircraft model.. so say using the open doors command on an fsds1 model that doesnt have the animation wont work- whereas on most (if not all) gmax models, it will.
8)

Expanding a bit on Dan's statements..

The important thing, of course, is that the model supports the particular animation.  In the case of an FSDS1/AF99 etc., model, the animation had to be done separately, because they were based on previous base mdl formats.

With gmax and FSDS2 models produced for FS2002, the animations are "built in" and must be properly tagged and animated, for the flightsim to work.

You can have a beautifully animted - in the modelling program - landing gear, but if it isn't tagged "l_gear" or such, no amount of pressing "G" will make it move...