The Blendshape Smoothing Tool allows you to refine multiple blendshapes simultaneously from the 3D View panel. It features adjustable smoothing iterations ranging from 1 to 10, alongside a variable strength parameter. A real-time preview toggle lets you evaluate the smoothing effect on your mesh before applying any changes. You can choose to process all blendshapes on a mesh at once or isolate specific ones for targeted adjustments. The tool also supports a non-destructive workflow by allowing you to save and restore the original blendshape values.