You can have options in matetial instances by using static switches in the main material.
For blending you can blend things by yourself or by using layered material.
Check this doc if you are not familar with layered material:
You can have options in matetial instances by using static switches in the main material.
For blending you can blend things by yourself or by using layered material.
Check this doc if you are not familar with layered material: