Tips and tricks doubling components without copy paste

The easiest way to duplicate components in SketchUp by clicking component is accompanied by pressing the control button wait until the mouse cursor marked + (plus) and slide or pull up twinning component separately or visible.
Hope it is useful

That assumes you have already selected the Move tool, of course. Ctrl (option on the Mac) then activates Move/Copy.

And the corresponding helps articles…
linear array: http://help.sketchup.com/de/article/94867
radial array: http://help.sketchup.com/de/article/94896

And there are plugins, like Compo Spray, Component Stringer, and Components onto Faces. Whatever method is best depends on what one wants to accomplish.

and PathCopy