Set Smooth Group

Set Smooth Group simplifies the process of setting smooth groups with sharp edges for selected faces in Blender. This add-on mimics workflows from other 3D applications like 3Ds Max, reducing the steps required to achieve smooth and sharp regions in your models. It integrates seamlessly into the Blender interface and offers a hotkey for quick access.

https://youtu.be/tBIeGLmYgbo