In V6 and the WIP:
- Run _Pipe.
- Click on a shared (mated / non-naked) polysurface edge for Select rail.
The Selection Menu appears for selecting the edge per the adjacent face.
The same occurs for Select rail’s ChainEdges option.
The edges are directly selected (not per face) for Select rail’s Multiple option.
In V5, the edges are directly selected for all options.