[Milad Ghiravani]

Yes, for scripting!

Can you help me, what’s this attributes?
For example on this code:

var selectedLayers = app.project.activeItem.selectedLayers;
for (i = 0; i < selectedLayers.length; i++)
{
  test(selectedLayers[i]);
}
function test(thisLayer)
{
    var spl = thisLayer.selectedProperties.length;
    try
    {
        var selectedKeys = 1;//first keyframe
        var newKeyTime = 2;// secounds 2 for example
        thisKeyValue = thisLayer.selectedProperties[spl-1].keyValue(selectedKeys);
        //*** Add all the attributes But I don't know what?!
        thisLayer.selectedProperties[spl-1].removeKey(selectedKeys);//delete old keyframe
        //*** Copy values to ney keyframe
        thisLayer.selectedProperties[spl-1].setValueAtTime(newKeyTime , thisKeyValue);
    }
    catch (err) {
            alert(err);
    }
}

Thank you