Comment 1 for bug 699541

These are effectively both feature requests. The "s" key
makes the polygon an old-style polygon for ancient backward
compatibility. It was never intended to automagically
connect to the tracks of your desires.

The sub-layers within groups have no connectivity
significance - they are all the same physical layer. Their
only purpose is for those that like to see color-coding
within a layer. In fact the use of groups should be
discouraged altogether.