New Dimension tool is designed to be good-enough, but not be way too complex to setup and use.

One of things we need to be a part of this 'good-enough' set of features it has should be a way to create consequential serialized dimensions, like the image attached demonstrates.

To do that now, we’d have to drag each segment one-by-one, and snap the dimensions line to each other (which in the current build just doesn’t happen even!). This method is generates doubled lines instead of only one, and won’t allow us to move all the dimension lines at once if needed.

Most plugins that allow dimensioning in Illustrator have this feature, including CADtools and BPT-Pro.