About mirrors again...
I want to make a custom mirror and I downloaded a nice mirror in 3ds format than imported it into my SweetHome. And it didn't work!
Mirror material was imported as some type of a metal. OK, I think there was anoter way - I took a model from post of hansmex and open it in my Deep Exploration to grab a mirror material from it and replace the material of my downloaded mirror with grabbed mirror material. Than modified mirror object was saved in .3ds, .obj and .dae but when I tried to import it in my SeetHome, it was unsuccesful at all even if I make a changes of a properties of a mirror material in Deep Exploration. So... What am I doing wrong? 
