I have an office with 4 walls, which two of them have different materials. Basically, all types of walls define as exterior walls. Therefore, if I define materials for the external walls automatically apply for all four walls. I should find a way to change the material of two of them.
One way which seems to be useful is first change two of them to the interior wall then define different material for interior walls.but I do not know, how should I do that?!
I will appreciate if you help me with this issue to change the material of two walls from four walls.
I didn't find the right solution from the Internet.
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