Photoshop script how to select multi layers by size ( CM or inch)

How familiar are you with JavaScript and Photoshop Scripting? 

Are you capable of adapting a Script that contains the necessary basic operations to your needs? 

The below Script should group Layers that have the same bounds dimensions and align them horizontally in the group (see screenshots). 

// group layers of the same bounds dimensions;
// 2021, use it at your own risk;
if (app.documents.length > 0) {
    var theLayers = collectLayersBounds ();
    theLayers.sort(sortArrayByIndexedItem);
    var theIndex = 1;
    var theArray = [[theLayers[0]]];
    while (theIndex != theLayers.length) {
        if (theArray[theArray.length-1][0][3] == theLayers[theIndex][3]) {
            theArray[theArray.length-1].push(theLayers[theIndex])
        }
        else {theArray.push([theLayers[theIndex]])};
        theIndex++
    };
// group layers;
    for (var m = 0; m < theArray.length; m++) {
        selectLayerByID(theArray[m][0][2], false);
        for (var n = 1; n < theArray[m].length; n++) {
            selectLayerByID(theArray[m][n][2], true);
        };
        groupSelectedLayers (theArray[m][0][3])
    };
// move layers;
    for (var o = 0; o < theArray.length; o++) {
        var theW = Number(theArray[o][0][3].split("*")[0]);
        for (var n = 1; n < theArray[o].length; n++) {
            moveLayer (theArray[o][n][2], theArray[o][0][4]-theArray[o][n][4]+theW*n, theArray[o][0][5]-theArray[o][n][5]);
        };
    };
};
////////////////////////////////////
// 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); 
}
};
////// collect layers //////
function collectLayersBounds () {
    // 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"));
    // 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'));
    var theColor = typeIDToStringID(layerDesc.getEnumerationValue(stringIDToTypeID("color")));
    var theBounds = layerDesc.getObjectValue(stringIDToTypeID("bounds"));
    var theX = theBounds.getUnitDoubleValue(stringIDToTypeID("left"));
    var theY = theBounds.getUnitDoubleValue(stringIDToTypeID("top"));
    var theW = theBounds.getUnitDoubleValue(stringIDToTypeID("right")) - theBounds.getUnitDoubleValue(stringIDToTypeID("left"));
    var theH = theBounds.getUnitDoubleValue(stringIDToTypeID("bottom")) - theBounds.getUnitDoubleValue(stringIDToTypeID("top"));
    theLayers.push([theName, theIndex, theID, theW+"*"+theH, theX, theY])
    };
    }
    catch (e) {};
    };
    return theLayers
    };
////// group //////
function groupSelectedLayers (theName) {
    var desc159 = new ActionDescriptor(); 
    var ref114 = new ActionReference(); 
    var idlayer = stringIDToTypeID( "layer" );
    var idordinal = stringIDToTypeID( "ordinal" );
    var idtargetEnum = stringIDToTypeID( "targetEnum" );
    var idnull = stringIDToTypeID( "null" );
    var idname = stringIDToTypeID( "name" );
    ref114.putEnumerated(idlayer, idordinal, idtargetEnum); 
    desc159.putReference(idnull, ref114 );
    desc159.putString(idname, "aaa" );
    executeAction( stringIDToTypeID( "groupLayersEvent" ), desc159, DialogModes.NO );
    var desc63 = new ActionDescriptor();
    var ref37 = new ActionReference();
    ref37.putEnumerated( idlayer, idordinal, idtargetEnum );
    desc63.putReference( idnull, ref37 );
    var desc64 = new ActionDescriptor();
    desc64.putString(idname, theName);
    desc63.putObject(stringIDToTypeID( "to" ), idlayer, desc64);
    executeAction(stringIDToTypeID( "set" ), desc63, DialogModes.NO)
};
////// sort a double array, thanks to sam, http://www.rhinocerus.net/forum/lang-javascript/ //////
function sortArrayByIndexedItem(a,b) {
    var theIndex = 3;
    if (a[theIndex]<b[theIndex]) return -1;
    if (a[theIndex]>b[theIndex]) return 1;
    return 0;
    };
////// move layer //////
function moveLayer (theID, hor, ver) {
selectLayerByID(theID, false);
    var desc77 = new ActionDescriptor();
    var ref38 = new ActionReference();
    var idlayer = stringIDToTypeID( "layer" );
    ref38.putEnumerated( idlayer, stringIDToTypeID( "ordinal" ), stringIDToTypeID( "targetEnum" ));
desc77.putReference( stringIDToTypeID( "null" ), ref38 );
var idto = stringIDToTypeID( "to" );
    var desc78 = new ActionDescriptor();
    var idpixelsUnit = stringIDToTypeID( "pixelsUnit" );
    desc78.putUnitDouble( stringIDToTypeID( "horizontal" ), idpixelsUnit, hor );
    desc78.putUnitDouble( stringIDToTypeID( "vertical" ), idpixelsUnit, ver );
desc77.putObject( idto, stringIDToTypeID( "offset" ), desc78 );
executeAction( stringIDToTypeID( "move" ), desc77, DialogModes.NO );
};