"Blend from shape" What does this do? how can I use it? I can't find info in the manual or google. I want to learn about this option and what it does to shape keys? How can I use it?
https://docs.blender.org/manual/uk/dev/modeling/meshes/editing/vertex/blend_shape.html
One very common use is to repair a shape key from a mistake, while leaving the desired deformations intact: if you like your shape key but you see some moving vertices that should stay still, you can select them, choose blend from shape, pointing at the basis shape, unchecking the &quot;add&quot; option (so to replace the moving vertices informations with the basis static locations).