>>2499985If you did the export correctly, the AnimationClips should all show up in the Animation tab's Action Editor. (Left arrow in the picture.)
From there, use the CATS menu to go: Start Pose Mode->Select an animation in the Action Editor->Copy the animation's name->Pose to Shape Key->Paste in the animation's name->Stop Pose Mode. (Right arrow in the picture.)
You need to repeat that for each of the animations, so I'd recommend setting up a macro or something.