Brillouin zone viewer should be able to show the k-space path actually selected for a band structure calculation by a user
The above is more tricky than the present version but I think it is what we really need.
My guess is that we need this in addition to the present BZ viewer, but during the control.in setup stage of a band structure calculation - at a point when both the geometry and the k-space path are known.
That (the BZ path visualization in an actual calculation) is one of the biggest steps that is missing especially in cases when users do not have a firm understanding of how the band structure path relates to their geometry ...