@Hl On my first plane,I will write your name.

@Hl Thanks

@ChinesestudentYZY select a part and open overload or XML

@Hl I know,but I do not know how to modify the data,I want to learn to make custom wing with control surfaces.

activate it by going to the simpleplanes menu and go to mods and activate the overload and XML then go back to build mode
there you have it