I was used 5.x before, and that version when I loaded FBX, Unity generated each material automatically, so I can change them like assigning textures or change shader.
And now I switched to 2017.3, and when I imported FBX, now Unity didn't generate materials anymore. I can see the properties of each material but every parameter is locked. It seems materials are inside of model and can't change like animation clips.
Some of model has multiple materials, so I can't generate manually and assign them. I'm creating mobile game so I really need to change the shader to mobile shader, not standard(PBR).
How to change materials of model from FBX in Unity 2017.3? Note that model created from Blender 2.7c and exported as FBX.