If you don't know how to animate objects there are a lot of tutorials on YouTube and as text too.When you learn to animate there are some sheets with arguments needed in order to see the animations in the game.I can't find it right now but if you search dcs world arguments you can find for the cockpit and the exterior model as well the arguments needed.I hope that I helped you.
PS:If you plan on converting planes from fsx or others simulators please don't unless you have clearance from the author as it's illegal