Who says that only pigs can fly? 
So this is the first custom animation I was able to execute. It is not that beautiful, but to be honest I was more concerned on getting it working at all. I have used Blender to create an animation (based on the .qb-model which comes with the Graphics Test Program) and exported it with the Add-On I am working on. So far it seems like everything works. The Add-On is not very comfortable to use yet (let’s see how comfortable it can be at all) and the process requires some manual work. I will try to smoothen the process and adjust the Add-On so it can be used to animate existing models but also own creations.