Question Create Keyframe from current pose

I am currently trying to blend between different static poses. I was thinking about using a blend tree to do this and create an AnimationClip for each pose, with only a single keyframe each. I already have poses for the object, but now I need to find a simple way to turn the current pose into a keyframe for the animation. Is this possible?

Background: we want to synchronize VR Hand Poses for a multi-user application, and instead of synchronizing every bone I wanted to instead just synchronize an identifier for the pose and an interpolation value. The poses are created via the SteamVR Skeleton Poser.