GLTFExporter support for EXT_mesh_gpu_instancing

Hi team,
Can/will EXT_mesh_gpu_instancing extension be supported for GLTFExporter?

It appears already supported by GLTFLoader

Also appears merged and generally supported by KhronosGroup (nov 2020)

But currently exporting a instancedMesh it is converted to a “normal” duplicate mesh, missing out on the benefits of being an instance once loaded again.

SideNote;
Looking at GLTF extensions supported by loader Extensions | Babylon.js Documentation
Is there any plan to support more of these on exporter side?

I don’t know if it’s planned, adding @Drigax.