It seems that with the new edge driver, the trick to “mirror” is to use the new Smart Lighting application (plug-in version)
This version not only recognizes the “child” switches, but includes a more appropriate reference where the Smart Strip name is used with the child channel listed below in a smaller font.
In any case, with the two combined (vEdge Creator and the new Smart Lighting App), I was able to replicate the individual switch capabilities from the old Groovy world.