The experimental Substrate material pipeline might help here?
It’s a new rendering paradigm for materials in that it more-accurately reflects (lol) the bi-directional scattering of light. That light just doesn’t reflect off-of and get absorbed-by a material but that the light can then pass to a NEW material, with different properties and be properly, well, shown.
Unsure it would help here but it’s not-the-same as what we are using today with the PBR pipeline, and it SHOULD offer some improvements with regards to refraction, non-opaque materials.
Just a thought. Otherwise to my limited knowledge I am unaware of any glass-specific type controls you are looking for. You could write your own in the materials-shader if you know better, but OOB I don’t think the engine does what you are asking.