Reflection of a HDRI only in specific objects

[Allertaler]

Unfortunately, I can not find a solution: I would like to reflect an enviroment HDRI in some specific windows. If I activate this HDRI material in "Reflections override" in the Render settings -> Scene enviroment, this will be reflected in all objects. How can I solve this?

Thank you for your help.
Sven

[romullus]

If Corona material for C4D is the same as for 3ds Max, then you can override enviroment reflections and refractions per material. I don't think that there is possibility to override per object.

[Allertaler]

I think that is not possible in C, possibly only via the "Ray switcher material". But I need a way to make objects like this.