You can publish documents in Nuxeo by triggering the publish operation: http://explorer.nuxeo.com/nuxeo/site/distribution/Nuxeo%20Platform-10.2/viewOperation/Document.PublishToSection

In WebUI, in order to trigger operations, some kind of action needs to occur. One example may be to add a nuxeo-operation button in the DOCUMENT_ACTIONS slot that triggers either: Document.PublishToSection (Document.Publish), an automation chain or script which calls Document.Publish, or a custom operation.

Please also see these links for more information: https://doc.nuxeo.com/nxdoc/web-ui-slots/ https://doc.nuxeo.com/nxdoc/how-to-insert-user-action/