Wishes for V7 - Sub-D

[inju]

Yes.

Extrusion edge, vertex, corner cutting, vertex opening function, development request in V8!

Chamfering a vertex is a request filed as RH-46804 and is on the v8 list for @Jussi_Aaltonen There will also be a new command in the 7.11 service release candidate called SubDExpandEdges which should help with the second request.