« on: July 26, 2014, 08:42:30 PM »
Sorry, that tool (the clone brush) is not in meshmixer today. It was in an early prototype, but we haven't had time to port it over to the current meshmixer (I won't bore you with software-engineering excuses...)
You can do something similar using the part drag-and-drop capabilities. Basically make a selection, then run Convert To -> Convert to Open Part. The your selection will be available as a drag-and-drop part under the Meshmix button (you will have to switch the category at the top to "My Parts")
To make armor/etc, a nice way is to make a selection on the base mesh (ie the character), then run Smooth Boundary (b hotkey). Then run the Offset tool, or the Extract tool (Extract is faster/simpler but can fold over in some areas, where Offset will do better). This will create the inner shell of the armor. Then either use Offset again, with the Connected box checked, or use Extrude, to thicken the shell into a solid.
(If you don't want a separate object, you can just use Offset (with Connected) or the Extrude tool)