Mtl. Override preserves opacity

Same button as with displacement, but for Opacity.

Is it possible? Sometimes when I have some vegetations, curtains or fire it changes in to plane and block a lot of information that I would like to get.

Would be useful for shadow snipers, that try to get the exact type of shade on their work.

duplicate, will be done: Override material: preserve X - Corona for 3ds Max :: Requests - Chaos Forum

Thank you, havent noticed.