public function copyAction(\VENDOR\Ext\Domain\Model\Object $object)

{

    // create new object

    $newObject = $this->objectManager->get("VENDOR\\Ext\\Domain\\Model\\Object") ;

    $properties = ObjectAccess::getGettableProperties($object);

    foreach ($properties as $propertyName => $propertyValue) {

        ObjectAccess::setProperty($newObject, $propertyName, $propertyValue);

    }

    $newObject->setPage($newPages);

    // add the object

    $this->objectRepository->add($newObject);

}