Something like having 5 "shape" blocks you use to define the area of a ship, and then "filling" that shape with whichever "type" ID to determine it's function? I could get behind that.
You'd load 3 layers/models for every ship/object; Shape, type, logic. Gives more aesthetic options. more practical load-in. wider range of hp and orientation values by splitting them into layers. I like it.
I think he's simply talking about setting the same inventory count to every shape in the multistack and adding one to that number when salvaging a matching block of any shape. (So salvaging a grey hull wedge would add "1" to the count for all five shapes in the grey hull multistack, not just the wedge shape.) And furthermore, making a block of a specific type and color in a factory could be used for any of the shapes for that specific type.
I'm hoping this will not only be implemented, but also, that color will be included in the multistack consolidation, so that one grey hull block will add one not only to the grey multistack, but to every other color hull multistack, assuming you have the "paint" needed to change the color. So that you can form any shape and paint any color, all from the same manufactured block.
In the game background, every block type, shape, and color will still have a block ID, but this multistack consolidation will make construction easier, more intuitive, and less tedious for builders, including factory managers.