Have a scale modifier for hard surface procedural modelling

While designing a metal construction, i thought it would be practical to have scale as a modifier option. While basic scale is not a realy fancy operation, it would be handy for hard surface modelling, especially usefull if it could be done on vertex group basis, and selectable x,y,z axis

A super fancy version might scale a based upon 2 seelcted vertexes and scale those to a numeric size (scale based upon given length)

I'd then be able to draw a metal construction out of pipes and then later easily adjust thicknes or width or hight of my elements while preserving the general shape. ea be able to adjust height of a construction but keeping the thicknes.