Sorry for the necro-thread, but his doesn't seem to be working for me in 4R6. Additive mesh duplication works as before (ctrl+Move Tool), but negative mesh duplication (ctrl+alt+Move Tool) results in an additive mesh. Same thing with the Add and Sub buttons in Dynamesh. I know, I could do this through subtools and through…
It's not a new subtool, so there's no need to switch back. The video was made prior to the release of R2, and highlights new features of R2. In this case, aside from Dynamesh, it's showing off one of the new enhancements to Transpose: Duplication. As long as the mesh has no subdivision levels (like this dynamesh doesn't),…