Batch Mockup Multiple Dimensions

With below code I get these resulting images for »Mug Right.psd«: 

// 2020, use it at your own risk;
if (app.documents.length > 0) {main()};
function main () {
    try {
        var myDocument = activeDocument;
        var theName = myDocument.name.match(/(.*)\.[^\.]+$/)[1];
        var thePath = myDocument.path;
        var theFiles = selectFile (true);
        var theLayers = collectLayersByName ("Your Design Here");
        selectLayerByID(theLayers[0][2],false);
        var theSO = openSmartObject();
        for (var m = 0; m < theFiles.length; m++) {
            var thisOne = theFiles[m];
            replaceContents (thisOne, theSO.activeLayer);
            theSO.save();
            activeDocument = myDocument;
            saveJpg(thePath, theName, new File (thisOne).name.match(/(.*)\.[^\.]+$/)[1]);
            activeDocument = theSO;
        };
        theSO.close();
    }
    catch (e) {alert ("something is wrong")}
};
////// open smart object //////
function openSmartObject () {
    var idplacedLayerEditContents = stringIDToTypeID( "placedLayerEditContents" );
    var desc2 = new ActionDescriptor();
    executeAction( idplacedLayerEditContents, desc2, DialogModes.NO );
    return activeDocument;
    };
////// replace contents //////
function replaceContents (newFile, theSO) {
    app.activeDocument.activeLayer = theSO;
    // =======================================================
    var idplacedLayerReplaceContents = stringIDToTypeID( "placedLayerReplaceContents" );
    var desc3 = new ActionDescriptor();
    var idnull = charIDToTypeID( "null" );
    desc3.putPath( idnull, new File( newFile ) );
    var idPgNm = charIDToTypeID( "PgNm" );
    desc3.putInteger( idPgNm, 1 );
    executeAction( idplacedLayerReplaceContents, desc3, DialogModes.NO );
    return app.activeDocument.activeLayer
    };
////// select files //////
function selectFile (multi) {
if (multi == true) {var theString = "please select files"}
else {var theString = "please select one file"};
if ($.os.search(/windows/i) != -1) {var theFiles = File.openDialog (theString, '*.jpg;*.tif;*.psd;*.pdf;*.ai', multi)}
else {var theFiles = File.openDialog (theString, getFiles, multi)};
////// filter files  for mac //////
function getFiles (theFile) {
    if (theFile.name.match(/\.(jpg|tif|psd|pdf|ai)$/i) || theFile.constructor.name == "Folder") {
        return true
        };
	};
return theFiles
};
////// save a jpg //////
function saveJpg (thePath, theName, theNewName) {
// jpg options;
var jpegOptions = new JPEGSaveOptions();
jpegOptions.quality = 9;
jpegOptions.embedColorProfile = true;
jpegOptions.matte = MatteType.NONE;
//save jpg;
activeDocument.saveAs((new File(thePath+"/"+theName+"_"+theNewName+".jpg")),jpegOptions,true);
};
////// collect layers with certain name //////
function collectLayersByName (aName) {
    // the file;
    var myDocument = app.activeDocument;
    // get number of layers;
    var ref = new ActionReference();
    ref.putProperty(stringIDToTypeID('property'), stringIDToTypeID('numberOfLayers'));
    ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
    var applicationDesc = executeActionGet(ref);
    var theNumber = applicationDesc.getInteger(stringIDToTypeID("numberOfLayers"));
    // process the layers;
    var theLayers = new Array;
    for (var m = 0; m <= theNumber; m++) {
    try {
    var ref = new ActionReference();
    ref.putIndex( charIDToTypeID( "Lyr " ), m);
    var layerDesc = executeActionGet(ref);
    var layerSet = typeIDToStringID(layerDesc.getEnumerationValue(stringIDToTypeID("layerSection")));
    var isBackground = layerDesc.getBoolean(stringIDToTypeID("background"));
    // if group collect values;
    if (layerSet != "layerSectionEnd" /*&& layerSet != "layerSectionStart" && isBackground != true*/) {
    var theName = layerDesc.getString(stringIDToTypeID('name'));
    var theID = layerDesc.getInteger(stringIDToTypeID('layerID'));
    var theIndex = layerDesc.getInteger(stringIDToTypeID('itemIndex'));
    if (theName == aName) {theLayers.push([theName, theIndex, theID])}
    };
    }
    catch (e) {};
    };
    return theLayers
    };
////// based on code by mike hale, via paul riggott //////
function selectLayerByID(id,add){ 
    add = undefined ? add = false:add 
    var ref = new ActionReference();
        ref.putIdentifier(charIDToTypeID("Lyr "), id);
        var desc = new ActionDescriptor();
        desc.putReference(charIDToTypeID("null"), ref );
           if(add) desc.putEnumerated( stringIDToTypeID( "selectionModifier" ), stringIDToTypeID( "selectionModifierType" ), stringIDToTypeID( "addToSelection" ) ); 
          desc.putBoolean( charIDToTypeID( "MkVs" ), false ); 
       try{
        executeAction(charIDToTypeID("slct"), desc, DialogModes.NO );
    }catch(e){
    alert(e.message); 
    }
    };