Get the polygonal lasso tool from the lasso menu on the toolbar.

Open up an image of a nice easy to select shape with a few straight lines such as this oriental heating duct.  To use the tool just click at each corner point and drag in a new direction. If you have a perfectly straight line or want one then hold down the shift key when going to your next intersection.
 

You must complete a full lap all the way around to close off the selection properly.

Now that you’ve made a selection of your object, right click and choose layer via copy. This will put (the selection of) the object onto its own layer.

This is pretty standard procedure and not that hard to master but it’s another important concept to understand and use in practicum. Now that it’s on it’s own layer you can grab the moVe tool in the upper right corner of the toolbar and move the layer around (weeee).

You’ve basically duplicated a part of the image that you wanted to by selecting it (in this case with the polygonal lasso tool) and put it on it’s own space. The polygonal obviously works well with nice straight lines and corners which need to be selected (such as architecture).

In the first instance I also added the brick base to the selection. This is how it would look by selecting it by itself. Remember that you can extend outside the bounds of the document and click a point out there with this tool.

Here I’m selecting the brick base and then cutting it (Ctrl/Cmd X) Edit: Cut to get rid of it from the new layer on top.

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If you hide the background original layer then you can see the oriental lattice floating in midspace.

To create another replica of this red lattice, drag the layer to the new layer icon as shown in the layers palette. Now you have two layers of additional frames.

To really take your skill to a higher level of application for your professionion or hobby you must first comprehend and know extensively the 'how to's of Photoshop itself.  You can achieve this level of proficiency when you apply the training in the Tutorials Training for Photoshop CS/CS2 DVD program.

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