Insert_Button insertBefore not working on notebookbar

[langziyang]

<script>
        window.addEventListener('message', function (event) {
            receiveMessage(event)
        })

        function postMessage(msg) {
            document.getElementById("collabora-online-viewer").contentWindow.postMessage(JSON.stringify(msg), '*');
        }

        function postReady() {
            postMessage({MessageId: "Host_PostmessageReady"})
            addButton()
        }

        function addButton() {
            postMessage({
                MessageId: "Insert_Button",
                Values: {
                    id: "jinber",
                    imgurl: 'http://192.168.68.29:8005/logoRouter.png',
                    hint: 'JinberButton',
                    label: "JinberButton",
                    insertBefore: "inserthyperlink"
                }
            });
            postMessage({
                MessageId: "Remove_Button",
                Values: {
                    id: "about"
                }
            })
            postMessage({
                MessageId: "Action_ChangeUIMode",
                Values: {
                    // Mode:"classic",   // working,the custom button added before inserthyperlink
                    Mode: "notebookbar",  // notworking,the custom button alwary added after save
                }
            })
        }

        function receiveMessage(event) {
            try {
                let msg = JSON.parse(event.data);
                if (!msg) {
                    return;
                }
                switch (msg.MessageId) {
                    case "App_LoadingStatus":
                        if (msg.Values && msg.Values.Status === "Document_Loaded") {
                            postReady();
                        }
                        break;
                }
            } catch (e) {

            }
        }
    </script>

classic mode

notebookbar mode

[thebearon]

Indeed, currently Insert_Button does not work on the tabbed bar (notebookbar), it is a missing feature.