Neos\Neos\Ui\Domain\Model\Changes\AbstractMove::canApply PHP Метод

    public function canApply()
    {
        $referenceNode = $this->getReference();
        $referenceNodeParent = $referenceNode->getParent();
        $nodeType = $this->getSubject()->getNodeType();
        return $referenceNode->getNodeType()->allowsChildNodeType($nodeType) && $referenceNodeParent->getNodeType()->allowsGrandchildNodeType($this->getSubject()->getName(), $nodeType);
    }