There are a few methods in stretching your cupboard, not exactly as you're asking though.
Pilou has shown you the quickest way if you're not concerned to much about accuracy of all your pieces, this method tends to scale all the horizontal pieces, which changes the thickness.
Another method to avoid the horizontal pieces from changing is to select the vertical pieces only, do your 1d stretch and then drag and snap the horizontal pieces back in place.
BTW in MoI V2, there would be less mouse clicks to achieve the same thing.
