The module in the config file manipulates the mesh. There is no animation. So look at a stock elevon config file, Then look at the model for that config file in a 3d program to see what relates to what. Normal elevons need to just be a separate piece all on their own. Canards are 2 but the module only pivots so you can't make a wing with built in flaps that way. I remember that there were some multistage flaps in, I Think, Airplane Plus. But I have never looked to see how they functioned.
I assume that if you are working on the part that you already have the set up for 3D modeling.