How to import maya camera animation?

I’m having similar issues, the thing that confuses me is I can create Camera Anim objects via Matinee, and I can Create Them Independently, and import fbx camera animation in to the asset, but I can’t use Camera Anim assets in matinee, and having all those keys in there, and swapping a couple of thousand keys between X and Y is not feasible.
Unless there is something I’m missing as far as a workflow where you can exchange tracks or copy paste them to a text file all at once.
What’s the eta on an expected fix ? 1 release 2 releases down the road etc… ?