I'm creating side skirts for a truck and I am duplicating the frames I want. The problem is it's making the duplicated object into another object. How do I put it into the same one?

I'm creating side skirts for a truck and I am duplicating the frames I want. The problem is it's making the duplicated object into another object. How do I put it into the same one?

You can join objects by selecting them (ShiftRMB) and pressing CtrlJ in the 3D view while on Object mode.
The selected object(s) will be joined to the active object.
The active object the one with the yellow outline, usually the last object selected.

you can move an object to another layer by: object mode + m + select the intended layer
reference: http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Putting_Hat_on_Person
Ctrl+J) – gandalf3 Dec 30 '13 at 00:31model6.10last) and pressingCtrl+J– gandalf3 Dec 30 '13 at 00:38Tab) – gandalf3 Dec 30 '13 at 00:42Shift+RMB? – gandalf3 Dec 30 '13 at 00:44Shift+RMBwork? – gandalf3 Dec 30 '13 at 00:47Tab), select all (A), and recalculate normals by pressingCtrl+N) – gandalf3 Dec 30 '13 at 01:32