Edge Grouping for vertical segments

Question

Edge Grouping seem only to operate on horizontal edge segments.

Answer 1

The effect of edge grouping depends on the layout algorithm you use and in case of direction-aware algorithms on the chosen layout orientation. E.g. arranging this diagram with the Hierarchical layout algorithm (default settings with orientation "Top to Bottom" and "Minimum Last Segment Length" set to 45) will yield this result:

So, vertical edge segments can be grouped.