Material in viewport

[Tyflow_SS]

Hello, I have a scene scattered trees with Tyflow.
But the materials are not visible in viewport( I used BirthObject +use reference material)In render its ok, but I want to have it in viewport too.
Is there any way to do this? 
Thanks.

[d4rk3lf]

Just apply material to Tyicon.

[Tyflow_SS]

Just apply material to Tyicon.

Thanks,@d4rk3lf
But each object has its own material and I can't apply several material to Tyflow Icon.
As I said " I used BirthObject +use reference material" .
I think there should be a solution, I really need to show materials in the viewport .
Thanks.

[d4rk3lf]

You need to create multi sub object material for all your objects, make each object different matID, and apply multisub object to Tyflow.

That's the only way I know.

[Tyflow_SS]

You need to create multi sub object material for all your objects, make each object  different matID, and apply multisub object to Tyflow.

That's the only way I know.

Ok, It worked thanks.