Software:
Blender 2.79
When you need to make all externally linked Data-Blocks local to your Blend file in one click:
Option A:
From the 3D View Object menu select Make Local > All
Option B:
In the 3D View, Press L and select All
Software:
Blender 2.79
When you need to make all externally linked Data-Blocks local to your Blend file in one click:
Option A:
From the 3D View Object menu select Make Local > All
Option B:
In the 3D View, Press L and select All