@sven, I think to attach more than one animation to the 3D model is impossible in terms of specification. As in the below screenshots, an animation is named after its .dae file, but in this case, model.play_anim doesn’t make sense. Is there any way to set multiple animations in a model?
You need to create a “Animation Set” file! The animation set will point to one or more DAE files that each contain one animation. So instead of specifying one DAE in your model file, you point to your new animation set instead.
This means that you currently need to export animations for 3D models in separate files, one file per animation, which isn’t a very nice solution. We have plans to support multiple animations per Collada file but can’t promise when this will be prioritised.