Recalculate normals from view

It would be great to have an option to re-calculate the normals of the selected faces from the direction of view. Many times we have to select all the inverted normals separatly, to flip their normals, because many times select all and re-calculate normals outside are not working properly. If we select all visble faces from one view, they should be re-calculated from the viewport angle, so we would win a lot of time not having to select each damaged face separately.