Comment 4 for bug 171027

I use Inkscape a lot of in drawing, and I'd love to use that for charting too. Here's my spare two cents:

I think that any of the path points would toggle in to a a glue point. You can even convert rectangles and circles in to the paths, and split the lines to have the path points exactly where you wish. Using the path points as a glue would make a huge difference comparing to the object center as in 0.43.

Using only the outmost grouping to seek the glue points, you can fill that hierarchical requirement too.