Question Record a scene during runtime and save it to a animation clip

I'm trying to save the transforms of multiple objects in my scene into an animation clip during runtime. The transforms are localRotation and localPosition. Right now I'm using the GameObjectRecorder, however, this is only available in Unity editor. I play through the simulation once and have the GameObjectRecorder record the scene, and then I save it to a clip and play it back. Is there any alternative to GameObjectRecorder because I need to build the project. I explored creating animation curves except I need to save multiple properties of multiple objects, and all of the objects are moving in different directions. This would result in an animation curve for each object, which isn't a problem if I can save multiple animation curves to a single animation clip, but I don't know if that's possible.

 

Bunch of us waiting for unity to allow creation of runtime clips in the non-legacy animation system. Apparently you can try legacy. See this https://forum.unity.com/threads/mecanim-animationclip-at-runtime.525983/#post-8283546