script to import layers in other file

Supposing the receiving image is open and active and the client file really has everything in just on Group and this Group is the topmost Layer this might help:

// 2014, use it at your own risk; #target photoshop if (app.documents.length > 0) { var myDocument = app.activeDocument; var aFile = selectFile(false); if (aFile) { var theClientFile = app.open(aFile); var theGroup = theClientFile.layers[0]; theGroup.duplicate(myDocument, ElementPlacement.PLACEATBEGINNING); theClientFile.close(SaveOptions.DONOTSAVECHANGES) } }; //////////////////////////////////// //////////////////////////////////// //////////////////////////////////// ////// select file ////// function selectFile (multi) { if (multi == true) {var theString = "please select files"} else {var theString = "please select one file"}; if ($.os.search(/windows/i) != -1) {var theFiles = File.openDialog (theString, '*.jpg;*.tif;*.psd;*.png', multi)} else {var theFiles = File.openDialog (theString, getFiles, multi)}; ////// filter files  for mac ////// function getFiles (theFile) {     if (theFile.name.match(/\.(jpg|tif|psd|png)$/i) || theFile.constructor.name == "Folder") {         return true         };   }; return theFiles };

To forego the file selection you could drop the lines referring to that and write the file path into (edited)

var theClientFile = app.open(new File(/*insert the proper path here*/));

Edit:

// 2014, use it at your own risk;
#target photoshop
if (app.documents.length > 0) {
var myDocument = app.activeDocument;
var theClientFile = app.open("…");// include the file’s fullName instead of the periods
var theGroup = theClientFile.layers[0];
theGroup.duplicate(myDocument, ElementPlacement.PLACEATBEGINNING);
theClientFile.close(SaveOptions.DONOTSAVECHANGES)
};