Did it appear to select anything? I just tried it, selected by area, continue appeared at F0, hit it and got a new set of layers, same name as original but with suffix of _2d_01 and _3d_01.
Roger Donaldson AIA CSI CDT NCARB abUsing Datacad since 1986, ver 23.00.03.04(SE) http://www.RogerDonaldsonArchitect.com