diff --git a/src/document.cpp b/src/document.cpp
index f22061cb..53db9b79 100644
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -2128,21 +2128,21 @@ void Document::setPartXmirrorState(QUuid partId, bool mirrored)
     emit skeletonChanged();
 }
 
-void Document::setPartZmirrorState(QUuid partId, bool mirrored)
-{
-    auto part = partMap.find(partId);
-    if (part == partMap.end()) {
-        qDebug() << "Part not found:" << partId;
-        return;
-    }
-    if (part->second.zMirrored == mirrored)
-        return;
-    part->second.zMirrored = mirrored;
-    part->second.dirty = true;
-    settleOrigin();
-    emit partZmirrorStateChanged(partId);
-    emit skeletonChanged();
-}
+//void Document::setPartZmirrorState(QUuid partId, bool mirrored)
+//{
+//    auto part = partMap.find(partId);
+//    if (part == partMap.end()) {
+//        qDebug() << "Part not found:" << partId;
+//        return;
+//    }
+//    if (part->second.zMirrored == mirrored)
+//        return;
+//    part->second.zMirrored = mirrored;
+//    part->second.dirty = true;
+//    settleOrigin();
+//    emit partZmirrorStateChanged(partId);
+//    emit skeletonChanged();
+//}
 
 void Document::setPartDeformThickness(QUuid partId, float thickness)
 {
diff --git a/src/document.h b/src/document.h
index 9280b0c8..a71871e6 100644
--- a/src/document.h
+++ b/src/document.h
@@ -384,9 +384,9 @@ signals:
     void turnaroundChanged();
     void editModeChanged();
     void skeletonChanged();
-    void resultSkeletonChanged();
+    //void resultSkeletonChanged();
     void resultTextureChanged();
-    void resultBakedTextureChanged();
+    //void resultBakedTextureChanged();
     void postProcessedResultChanged();
     void resultRigChanged();
     void rigChanged();
@@ -395,7 +395,7 @@ signals:
     void partSubdivStateChanged(QUuid partId);
     void partDisableStateChanged(QUuid partId);
     void partXmirrorStateChanged(QUuid partId);
-    void partZmirrorStateChanged(QUuid partId);
+    //void partZmirrorStateChanged(QUuid partId);
     void partDeformThicknessChanged(QUuid partId);
     void partDeformWidthChanged(QUuid partId);
     void partRoundStateChanged(QUuid partId);
@@ -550,7 +550,7 @@ public slots:
     void setPartSubdivState(QUuid partId, bool subdived);
     void setPartDisableState(QUuid partId, bool disabled);
     void setPartXmirrorState(QUuid partId, bool mirrored);
-    void setPartZmirrorState(QUuid partId, bool mirrored);
+    //void setPartZmirrorState(QUuid partId, bool mirrored);
     void setPartDeformThickness(QUuid partId, float thickness);
     void setPartDeformWidth(QUuid partId, float width);
     void setPartRoundState(QUuid partId, bool rounded);
diff --git a/src/documentwindow.cpp b/src/documentwindow.cpp
index 963a7b49..df1b3119 100644
--- a/src/documentwindow.cpp
+++ b/src/documentwindow.cpp
@@ -61,6 +61,11 @@ const std::map<DocumentWindow *, QUuid> &DocumentWindow::documentWindows()
     return g_documentWindows;
 }
 
+Document *DocumentWindow::document()
+{
+    return m_document;
+}
+
 void DocumentWindow::showAcknowlegements()
 {
     if (!g_acknowlegementsWidget) {
@@ -1353,7 +1358,7 @@ void DocumentWindow::showExportPreview()
         connect(m_document, &Document::resultMeshChanged, m_exportPreviewWidget, &ExportPreviewWidget::checkSpinner);
         connect(m_document, &Document::exportReady, m_exportPreviewWidget, &ExportPreviewWidget::checkSpinner);
         connect(m_document, &Document::resultTextureChanged, m_exportPreviewWidget, &ExportPreviewWidget::updateTexturePreview);
-        connect(m_document, &Document::resultBakedTextureChanged, m_exportPreviewWidget, &ExportPreviewWidget::updateTexturePreview);
+        //connect(m_document, &Document::resultBakedTextureChanged, m_exportPreviewWidget, &ExportPreviewWidget::updateTexturePreview);
         registerDialog(m_exportPreviewWidget);
     }
     m_exportPreviewWidget->show();
diff --git a/src/documentwindow.h b/src/documentwindow.h
index f42db8ef..327aa77d 100644
--- a/src/documentwindow.h
+++ b/src/documentwindow.h
@@ -27,6 +27,7 @@ signals:
 public:
     DocumentWindow();
     ~DocumentWindow();
+    Document *document();
     static DocumentWindow *createDocumentWindow();
     static const std::map<DocumentWindow *, QUuid> &documentWindows();
     static void showAcknowlegements();
diff --git a/src/remoteioconnection.cpp b/src/remoteioconnection.cpp
index 6e08a9d3..509935e8 100644
--- a/src/remoteioconnection.cpp
+++ b/src/remoteioconnection.cpp
@@ -14,6 +14,17 @@ RemoteIoConnection::RemoteIoConnection(QTcpSocket *tcpSocket) :
     
     m_commandHandlers["listwindow"] = &RemoteIoConnection::commandListWindow;
     m_commandHandlers["selectwindow"] = &RemoteIoConnection::commandSelectWindow;
+    m_commandHandlers["undo"] = &RemoteIoConnection::commandUndo;
+    m_commandHandlers["redo"] = &RemoteIoConnection::commandRedo;
+    m_commandHandlers["paste"] = &RemoteIoConnection::commandPaste;
+    m_commandHandlers["removenode"] = &RemoteIoConnection::commandRemoveNode;
+    m_commandHandlers["removeedge"] = &RemoteIoConnection::commandRemoveEdge;
+    m_commandHandlers["removepart"] = &RemoteIoConnection::commandRemovePart;
+    m_commandHandlers["addnode"] = &RemoteIoConnection::commandAddNode;
+    
+    if (!DocumentWindow::documentWindows().empty()) {
+        connectDocumentWindow(DocumentWindow::documentWindows().begin()->first);
+    }
 }
 
 RemoteIoConnection::~RemoteIoConnection()
@@ -41,12 +52,16 @@ void RemoteIoConnection::handleRead()
         }
         QString errorMessage;
         auto response = findHandler->second(this, -1 == parametersBegin ? QByteArray() : command.mid(parametersBegin), &errorMessage);
+        QByteArray fullResponse;
         if (errorMessage.isEmpty())
-            m_tcpSocket->write(QByteArray("+OK\r\n").toHex());
+            fullResponse += QByteArray("+OK\r\n");
         else
-            m_tcpSocket->write(("-" + errorMessage + "\r\n").toUtf8().toHex());
-        m_tcpSocket->write(response.toHex());
-        m_tcpSocket->write(0);
+            fullResponse += ("-" + errorMessage + "\r\n").toUtf8();
+        fullResponse += response;
+        
+        fullResponse = fullResponse.toHex();
+        fullResponse.append((char)0);
+        m_tcpSocket->write(fullResponse);
     }
 }
 
@@ -64,7 +79,7 @@ QString RemoteIoConnection::nameFromCommand(const QByteArray &command, int *para
         if (isWhitespace(command[i])) {
             int nameEnd = i;
             if (nullptr != parametersBegin) {
-                while (isWhitespace(command[i]))
+                while (i < command.size() && isWhitespace(command[i]))
                     ++i;
                 if (i < command.size())
                     *parametersBegin = i;
@@ -92,6 +107,26 @@ QByteArray RemoteIoConnection::nextCommandFromCache()
     return QByteArray();
 }
 
+QString RemoteIoConnection::nextParameter(const QByteArray &parameters, int *offset)
+{
+    if (*offset >= parameters.size())
+        return QString();
+    
+    for (int i = *offset; i < parameters.size(); ++i) {
+        if (isWhitespace(parameters[i])) {
+            int parameterEnd = i;
+            auto parameter = parameters.mid(*offset, parameterEnd);
+            while (i < parameters.size() && isWhitespace(parameters[i]))
+                ++i;
+            *offset = i;
+            return parameter;
+        }
+    }
+    auto parameter = parameters.mid(*offset);
+    *offset = parameters.size();
+    return parameter;
+}
+
 QByteArray RemoteIoConnection::commandListWindow(const QByteArray &parameters, QString *errorMessage)
 {
     Q_UNUSED(parameters);
@@ -104,11 +139,284 @@ QByteArray RemoteIoConnection::commandListWindow(const QByteArray &parameters, Q
     return response;
 }
 
+void RemoteIoConnection::respondEventWithId(const QString &eventName, const QUuid &id)
+{
+    QByteArray fullResponse = QString("#%1 %2\r\n").arg(eventName).arg(id.toString()).toUtf8();
+    fullResponse = fullResponse.toHex();
+    fullResponse.append((char)0);
+    m_tcpSocket->write(fullResponse);
+}
+
+void RemoteIoConnection::respondEvent(const QString &eventName)
+{
+    QByteArray fullResponse = QString("#%1\r\n").arg(eventName).toUtf8();
+    fullResponse = fullResponse.toHex();
+    fullResponse.append((char)0);
+    m_tcpSocket->write(fullResponse);
+}
+
+void RemoteIoConnection::connectDocumentSignals()
+{
+    if (nullptr == m_currentDocumentWindow)
+        return;
+    
+    auto document = m_currentDocumentWindow->document();
+    
+    m_documentConnections << connect(document, &Document::nodeAdded, this, [&](QUuid nodeId) {
+        respondEventWithId("nodeadded", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::partAdded, this, [&](QUuid partId) {
+        respondEventWithId("partadded", partId);
+    });
+    m_documentConnections << connect(document, &Document::edgeAdded, this, [&](QUuid edgeId) {
+        respondEventWithId("edgeadded", edgeId);
+    });
+    m_documentConnections << connect(document, &Document::partRemoved, this, [&](QUuid partId) {
+        respondEventWithId("partremoved", partId);
+    });
+    m_documentConnections << connect(document, &Document::componentNameChanged, this, [&](QUuid componentId) {
+        respondEventWithId("componentnamechanged", componentId);
+    });
+    m_documentConnections << connect(document, &Document::componentChildrenChanged, this, [&](QUuid componentId) {
+        respondEventWithId("componentchildrenchanged", componentId);
+    });
+    m_documentConnections << connect(document, &Document::componentRemoved, this, [&](QUuid componentId) {
+        respondEventWithId("componentremoved", componentId);
+    });
+    m_documentConnections << connect(document, &Document::componentAdded, this, [&](QUuid componentId) {
+        respondEventWithId("componentadded", componentId);
+    });
+    m_documentConnections << connect(document, &Document::componentExpandStateChanged, this, [&](QUuid componentId) {
+        respondEventWithId("componentexpandstatechanged", componentId);
+    });
+    m_documentConnections << connect(document, &Document::nodeRemoved, this, [&](QUuid nodeId) {
+        respondEventWithId("noderemoved", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::edgeRemoved, this, [&](QUuid edgeId) {
+        respondEventWithId("edgeremoved", edgeId);
+    });
+    m_documentConnections << connect(document, &Document::nodeRadiusChanged, this, [&](QUuid nodeId) {
+        respondEventWithId("noderadiuschanged", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::nodeBoneMarkChanged, this, [&](QUuid nodeId) {
+        respondEventWithId("nodebonemarkchanged", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::nodeOriginChanged, this, [&](QUuid nodeId) {
+        respondEventWithId("nodeoriginchanged", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::edgeChanged, this, [&](QUuid edgeId) {
+        respondEventWithId("edgechanged", edgeId);
+    });
+    m_documentConnections << connect(document, &Document::partPreviewChanged, this, [&](QUuid partId) {
+        respondEventWithId("partpreviewchanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::resultMeshChanged, this, [&]() {
+        respondEvent("resultmeshchanged");
+    });
+    m_documentConnections << connect(document, &Document::turnaroundChanged, this, [&]() {
+        respondEvent("turnaroundchanged");
+    });
+    m_documentConnections << connect(document, &Document::editModeChanged, this, [&]() {
+        respondEvent("editmodechanged");
+    });
+    m_documentConnections << connect(document, &Document::skeletonChanged, this, [&]() {
+        respondEvent("skeletonchanged");
+    });
+    m_documentConnections << connect(document, &Document::resultTextureChanged, this, [&]() {
+        respondEvent("resulttexturechanged");
+    });
+    m_documentConnections << connect(document, &Document::postProcessedResultChanged, this, [&]() {
+        respondEvent("postprocessedresultchanged");
+    });
+    m_documentConnections << connect(document, &Document::resultRigChanged, this, [&]() {
+        respondEvent("resultrigchanged");
+    });
+    m_documentConnections << connect(document, &Document::rigChanged, this, [&]() {
+        respondEvent("rigchanged");
+    });
+    m_documentConnections << connect(document, &Document::partLockStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partlockstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partVisibleStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partvisiblestatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partSubdivStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partsubdivstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partDisableStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partdisablestatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partXmirrorStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partxmirrorstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partDeformThicknessChanged, this, [&](QUuid partId) {
+        respondEventWithId("partdeformthicknesschanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partDeformWidthChanged, this, [&](QUuid partId) {
+        respondEventWithId("partdeformwidthchanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partRoundStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partroundstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partColorStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partcolorstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partCutRotationChanged, this, [&](QUuid partId) {
+        respondEventWithId("partcutrotationchanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partCutTemplateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partcuttemplatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partMaterialIdChanged, this, [&](QUuid partId) {
+        respondEventWithId("partmaterialidchanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::partChamferStateChanged, this, [&](QUuid partId) {
+        respondEventWithId("partchamferstatechanged", partId);
+    });
+    m_documentConnections << connect(document, &Document::componentCombineModeChanged, this, [&](QUuid componentId) {
+        respondEventWithId("componentcombinemodechanged", componentId);
+    });
+    m_documentConnections << connect(document, &Document::cleanup, this, [&]() {
+        respondEvent("cleanup");
+    });
+    m_documentConnections << connect(document, &Document::originChanged, this, [&]() {
+        respondEvent("originchanged");
+    });
+    m_documentConnections << connect(document, &Document::xlockStateChanged, this, [&]() {
+        respondEvent("xlockstatechanged");
+    });
+    m_documentConnections << connect(document, &Document::ylockStateChanged, this, [&]() {
+        respondEvent("ylockstatechanged");
+    });
+    m_documentConnections << connect(document, &Document::zlockStateChanged, this, [&]() {
+        respondEvent("zlockstatechanged");
+    });
+    m_documentConnections << connect(document, &Document::radiusLockStateChanged, this, [&]() {
+        respondEvent("radiuslockstatechanged");
+    });
+    m_documentConnections << connect(document, &Document::checkPart, this, [&](QUuid partId) {
+        respondEventWithId("checkpart", partId);
+    });
+    m_documentConnections << connect(document, &Document::partChecked, this, [&](QUuid partId) {
+        respondEventWithId("partchecked", partId);
+    });
+    m_documentConnections << connect(document, &Document::partUnchecked, this, [&]() {
+        respondEvent("partunchecked");
+    });
+    m_documentConnections << connect(document, &Document::enableBackgroundBlur, this, [&]() {
+        respondEvent("enablebackgroundblur");
+    });
+    m_documentConnections << connect(document, &Document::disableBackgroundBlur, this, [&]() {
+        respondEvent("disablebackgroundblur");
+    });
+    m_documentConnections << connect(document, &Document::exportReady, this, [&]() {
+        respondEvent("exportready");
+    });
+    m_documentConnections << connect(document, &Document::uncheckAll, this, [&]() {
+        respondEvent("uncheckall");
+    });
+    m_documentConnections << connect(document, &Document::checkNode, this, [&](QUuid nodeId) {
+        respondEventWithId("checknode", nodeId);
+    });
+    m_documentConnections << connect(document, &Document::checkEdge, this, [&](QUuid edgeId) {
+        respondEventWithId("checkedge", edgeId);
+    });
+    m_documentConnections << connect(document, &Document::optionsChanged, this, [&]() {
+        respondEvent("optionschanged");
+    });
+    m_documentConnections << connect(document, &Document::rigTypeChanged, this, [&]() {
+        respondEvent("rigtypechanged");
+    });
+    m_documentConnections << connect(document, &Document::posesChanged, this, [&]() {
+        respondEvent("poseschanged");
+    });
+    m_documentConnections << connect(document, &Document::motionsChanged, this, [&]() {
+        respondEvent("motionschanged");
+    });
+    m_documentConnections << connect(document, &Document::poseAdded, this, [&](QUuid poseId) {
+        respondEventWithId("poseadded", poseId);
+    });
+    m_documentConnections << connect(document, &Document::poseRemoved, this, [&](QUuid poseId) {
+        respondEventWithId("poseremoved", poseId);
+    });
+    m_documentConnections << connect(document, &Document::poseListChanged, this, [&]() {
+        respondEvent("poselistchanged");
+    });
+    m_documentConnections << connect(document, &Document::poseNameChanged, this, [&](QUuid poseId) {
+        respondEventWithId("posenamechanged", poseId);
+    });
+    m_documentConnections << connect(document, &Document::poseFramesChanged, this, [&](QUuid poseId) {
+        respondEventWithId("poseframeschanged", poseId);
+    });
+    m_documentConnections << connect(document, &Document::poseTurnaroundImageIdChanged, this, [&](QUuid poseId) {
+        respondEventWithId("poseturnaroundimageidchanged", poseId);
+    });
+    m_documentConnections << connect(document, &Document::posePreviewChanged, this, [&](QUuid poseId) {
+        respondEventWithId("posepreviewchanged", poseId);
+    });
+    m_documentConnections << connect(document, &Document::motionAdded, this, [&](QUuid motionId) {
+        respondEventWithId("motionadded", motionId);
+    });
+    m_documentConnections << connect(document, &Document::motionRemoved, this, [&](QUuid motionId) {
+        respondEventWithId("motionremoved", motionId);
+    });
+    m_documentConnections << connect(document, &Document::motionListChanged, this, [&]() {
+        respondEvent("motionlistchanged");
+    });
+    m_documentConnections << connect(document, &Document::motionNameChanged, this, [&](QUuid motionId) {
+        respondEventWithId("motionnamechanged", motionId);
+    });
+    m_documentConnections << connect(document, &Document::motionClipsChanged, this, [&](QUuid motionId) {
+        respondEventWithId("motionclipschanged", motionId);
+    });
+    m_documentConnections << connect(document, &Document::motionPreviewChanged, this, [&](QUuid motionId) {
+        respondEventWithId("motionpreviewchanged", motionId);
+    });
+    m_documentConnections << connect(document, &Document::motionResultChanged, this, [&](QUuid motionId) {
+        respondEventWithId("motionresultchanged", motionId);
+    });
+    m_documentConnections << connect(document, &Document::materialAdded, this, [&](QUuid materialId) {
+        respondEventWithId("materialadded", materialId);
+    });
+    m_documentConnections << connect(document, &Document::materialRemoved, this, [&](QUuid materialId) {
+        respondEventWithId("materialremoved", materialId);
+    });
+    m_documentConnections << connect(document, &Document::materialListChanged, this, [&]() {
+        respondEvent("materiallistchanged");
+    });
+    m_documentConnections << connect(document, &Document::materialNameChanged, this, [&](QUuid materialId) {
+        respondEventWithId("materialnamechanged", materialId);
+    });
+    m_documentConnections << connect(document, &Document::materialLayersChanged, this, [&](QUuid materialId) {
+        respondEventWithId("materiallayerschanged", materialId);
+    });
+    m_documentConnections << connect(document, &Document::materialPreviewChanged, this, [&](QUuid materialId) {
+        respondEventWithId("materialpreviewchanged", materialId);
+    });
+    m_documentConnections << connect(document, &Document::meshGenerating, this, [&]() {
+        respondEvent("meshgenerating");
+    });
+    m_documentConnections << connect(document, &Document::postProcessing, this, [&]() {
+        respondEvent("postprocessing");
+    });
+    m_documentConnections << connect(document, &Document::textureGenerating, this, [&]() {
+        respondEvent("texturegenerating");
+    });
+    m_documentConnections << connect(document, &Document::textureChanged, this, [&]() {
+        respondEvent("texturechanged");
+    });
+}
+
+void RemoteIoConnection::disconnectDocumentSignals()
+{
+    for (const auto &it: m_documentConnections) {
+        disconnect(it);
+    }
+    m_documentConnections.clear();
+}
+
 QByteArray RemoteIoConnection::commandSelectWindow(const QByteArray &parameters, QString *errorMessage)
 {
-    Q_UNUSED(parameters);
-    Q_UNUSED(errorMessage);
-    
     QByteArray response;
     if (parameters.isEmpty()) {
         *errorMessage = "Must specify window id";
@@ -122,16 +430,152 @@ QByteArray RemoteIoConnection::commandSelectWindow(const QByteArray &parameters,
     for (const auto &it: DocumentWindow::documentWindows()) {
         if (it.second == windowId) {
             qDebug() << "Remote io select window:" << it.second;
-            m_currentDocumentWindow = it.first;
-            connect(m_currentDocumentWindow, &DocumentWindow::uninialized, this, [&]() {
-                if (sender() == m_currentDocumentWindow) {
-                    m_currentDocumentWindow = nullptr;
-                    qDebug() << "Selected window destroyed";
-                }
-            });
+            connectDocumentWindow(it.first);
             return QByteArray();
         }
     }
     *errorMessage = "Window id not found:" + QString(parameters);
     return QByteArray();
 }
+
+void RemoteIoConnection::connectDocumentWindow(DocumentWindow *window)
+{
+    if (m_currentDocumentWindow == window)
+        return;
+    disconnectDocumentSignals();
+    m_currentDocumentWindow = window;
+    if (nullptr != m_currentDocumentWindow) {
+        connect(m_currentDocumentWindow, &DocumentWindow::uninialized, this, [&]() {
+            if (sender() == m_currentDocumentWindow) {
+                m_currentDocumentWindow = nullptr;
+                qDebug() << "Selected window destroyed";
+            }
+        });
+        connectDocumentSignals();
+    }
+}
+
+#define COMMAND_PRECHECK() do {                 \
+    if (nullptr == m_currentDocumentWindow) {   \
+        *errorMessage = "No window selected";   \
+        return QByteArray();                    \
+    }                                           \
+} while (false)
+
+QByteArray RemoteIoConnection::commandUndo(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    m_currentDocumentWindow->document()->undo();
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandRedo(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    m_currentDocumentWindow->document()->redo();
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandPaste(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    m_currentDocumentWindow->document()->paste();
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandRemoveNode(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    if (parameters.isEmpty()) {
+        *errorMessage = "Must specify node id";
+        return QByteArray();
+    }
+    QUuid nodeId = QUuid(QString(parameters));
+    if (nodeId.isNull()) {
+        *errorMessage = "Node id is invalid:" + QString(parameters);
+        return QByteArray();
+    }
+    m_currentDocumentWindow->document()->removeNode(nodeId);
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandRemoveEdge(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    if (parameters.isEmpty()) {
+        *errorMessage = "Must specify edge id";
+        return QByteArray();
+    }
+    QUuid edgeId = QUuid(QString(parameters));
+    if (edgeId.isNull()) {
+        *errorMessage = "Edge id is invalid:" + QString(parameters);
+        return QByteArray();
+    }
+    m_currentDocumentWindow->document()->removeEdge(edgeId);
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandRemovePart(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    if (parameters.isEmpty()) {
+        *errorMessage = "Must specify part id";
+        return QByteArray();
+    }
+    QUuid partId = QUuid(QString(parameters));
+    if (partId.isNull()) {
+        *errorMessage = "Part id is invalid:" + QString(parameters);
+        return QByteArray();
+    }
+    m_currentDocumentWindow->document()->removePart(partId);
+    return QByteArray();
+}
+
+QByteArray RemoteIoConnection::commandAddNode(const QByteArray &parameters, QString *errorMessage)
+{
+    COMMAND_PRECHECK();
+    
+    // float x, float y, float z, float radius, QUuid fromNodeId
+    
+    int offset = 0;
+    
+    auto xString = nextParameter(parameters, &offset);
+    if (xString.isEmpty()) {
+        *errorMessage = "Must specify x parameter";
+        return QByteArray();
+    }
+    float x = xString.toFloat();
+    
+    auto yString = nextParameter(parameters, &offset);
+    if (yString.isEmpty()) {
+        *errorMessage = "Must specify y parameter";
+        return QByteArray();
+    }
+    float y = yString.toFloat();
+    
+    auto zString = nextParameter(parameters, &offset);
+    if (zString.isEmpty()) {
+        *errorMessage = "Must specify z parameter";
+        return QByteArray();
+    }
+    float z = zString.toFloat();
+    
+    auto radiusString = nextParameter(parameters, &offset);
+    if (radiusString.isEmpty()) {
+        *errorMessage = "Must specify radius parameter";
+        return QByteArray();
+    }
+    float radius = radiusString.toFloat();
+    
+    auto fromNodeIdString = nextParameter(parameters, &offset);
+    QUuid fromNodeId = QUuid(fromNodeIdString);
+    
+    m_currentDocumentWindow->document()->addNode(x, y, z, radius, fromNodeId);
+    return QByteArray();
+}
diff --git a/src/remoteioconnection.h b/src/remoteioconnection.h
index c078993d..9dd24bc0 100644
--- a/src/remoteioconnection.h
+++ b/src/remoteioconnection.h
@@ -5,6 +5,7 @@
 #include <vector>
 #include <QByteArray>
 #include <map>
+#include <QList>
 #include "documentwindow.h"
 
 class RemoteIoConnection;
@@ -26,13 +27,27 @@ private:
     QByteArray m_receiveCache;
     DocumentWindow *m_currentDocumentWindow = nullptr;
     std::map<QString, CommandHandler> m_commandHandlers;
+    QList<QMetaObject::Connection> m_documentConnections;
     
     QByteArray nextCommandFromCache();
     QString nameFromCommand(const QByteArray &command, int *parametersBegin=nullptr);
+    QString nextParameter(const QByteArray &parameters, int *offset);
     bool isWhitespace(char c);
+    void connectDocumentSignals();
+    void disconnectDocumentSignals();
+    void connectDocumentWindow(DocumentWindow *window);
+    void respondEventWithId(const QString &eventName, const QUuid &id);
+    void respondEvent(const QString &eventName);
     
     QByteArray commandListWindow(const QByteArray &parameters, QString *errorMessage);
     QByteArray commandSelectWindow(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandUndo(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandRedo(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandPaste(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandRemoveNode(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandRemoveEdge(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandRemovePart(const QByteArray &parameters, QString *errorMessage);
+    QByteArray commandAddNode(const QByteArray &parameters, QString *errorMessage);
 };
 
 #endif