Edges start dragging when clicked.

[danielscottjames]

This might be macOS specific, but when I click to select an edge the edge jumps to the mouse for a split second as if you were dragging it.

[cj-dimaano]

This is actually how it's coded; the edge is picked up as soon as the default pointer is down. I can change it so that it'll only show as being dragged when the mouse moves, but it may take some time, so I'll defer it until I'm finished with other features that take priority.

[danielscottjames]

I like what you proposed the best. But it could additionally be a click, wait x milliseconds, start dragging.