V ray Proxy with Materials in sketch up

[magda nt]

Hello everyone!

I am total beginner in proxy idea and i would really need some help!

I export Proxy model but I don't Know how to save the material as well.

I have read in some forums that v-ray creates automatically a multi-material but in my case it does not!

When I import the proxy in a new file I have to re-assign all the materials manually one by one and it takes too much time.

Is there any easier way?

Thank you in advance for your time!

ps:I am using v-ray 4.20.02