Easily duplicate / paste layer in different group folder?

Question

I design Web sites using Layer Comps so the homepage and innerpage examples are all in one .PSD. This means my Photoshop CC file has TONS of layers and folders that require me to scroll in the Layers Palette.
Is there a way to copy/paste or move a layer to a different group folder without dragging it? Copy/paste for layer styles is a great tool. Is there anything like this for layers themselves?
Sometimes I resort to opening a blank PSD to drag the layer to that, then go back to my source document and auto select the new group I want it in, flip back to the blank doc and drag the layer from there. That is not a great workaround if I want the positioning to be the same as the original layer.
Thanks!

Answer 1

Hi Nik,
use of with() is generally not good, maybe:
http://yuiblog.com/blog/2006/04/11/with-statement-considered-harmful/
without with() it looks like that:
#target illustrator
var docRef = app.activeDocument;
var ln = 'Layer 1';
var ol = docRef.layers.getByName(ln);
var nl = docRef.layers.add();
nl.name = ln+' Copy';
for (var a = ol.pageItems.length-1; a >= 0; a--) {
    ol.pageItems[a].duplicate(nl, ElementPlacement.PLACEATBEGINNING);
the second document is a new document?
var doc2 =app.documents.add();
or you can get it by name just like the layer
or by index
var doc2 = app,documets[ indexnumber  ];
then var nl should be:
var nl = doc2.layers.add();
chris