There is also a problem with my local content fragemnt models not showing, but I can create fragment by model in the asset   and I also configured  

ok，thanks

Hi All,   https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/sites/administering/content-fragments/content-fragments-models.html?lang=en#using-references-to-form-nested-content   It's shown in this document fragmentreference， But not in my environment       AEM version...