diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19f005a..32a31fc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,9 @@ cmake_minimum_required(VERSION 3.16)
 project(lightcontrol VERSION 0.1 LANGUAGES CXX)
 
 set(CMAKE_AUTOMOC ON)
+set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS ON)
 
 find_package(Qt6 6.2 REQUIRED COMPONENTS SerialPort Quick)
 
@@ -14,6 +16,7 @@ qt_add_executable(applightcontrol
     dmxcontrollerthread.h dmxcontrollerthread.cpp
     lightproject.h lightproject.cpp
     devicesmodel.h devicesmodel.cpp
+    devicetyperegistersmodel.h devicetyperegistersmodel.cpp
 )
 
 qt_add_qml_module(applightcontrol
diff --git a/devicesmodel.cpp b/devicesmodel.cpp
index b69e39f..5516078 100644
--- a/devicesmodel.cpp
+++ b/devicesmodel.cpp
@@ -2,6 +2,7 @@
 
 #include <algorithm>
 
+#include <QDebug>
 #include <QCoreApplication>
 #include <QQmlEngine>
 
@@ -10,36 +11,15 @@ constexpr auto LightTypeIdRole = Qt::UserRole + 1;
 constexpr auto AddressRole = Qt::UserRole + 2;
 constexpr auto PositionRole = Qt::UserRole + 3;
 
-DevicesModel::DevicesModel(QObject *parent) :
-    QAbstractItemModel{parent}
-{
-}
-
 void DevicesModel::setController(DmxController *controller)
 {
-    if (m_controller != controller)
-    {
-        beginResetModel();
-        m_controller = controller;
-        endResetModel();
-        emit controllerChanged(m_controller);
-    }
-}
+    if (m_controller == controller)
+        return;
 
-QModelIndex DevicesModel::index(int row, int column, const QModelIndex &parent) const
-{
-    if (parent.isValid())
-    {
-        qWarning() << "hilfe" << __LINE__;
-        return {};
-    }
-
-    return createIndex(row, column, nullptr);
-}
-
-QModelIndex DevicesModel::parent(const QModelIndex &child) const
-{
-    return {};
+    beginResetModel();
+    m_controller = controller;
+    endResetModel();
+    emit controllerChanged(m_controller);
 }
 
 int DevicesModel::rowCount(const QModelIndex &parent) const
@@ -56,16 +36,6 @@ int DevicesModel::rowCount(const QModelIndex &parent) const
     return m_controller->lightProject().lights.size();
 }
 
-int DevicesModel::columnCount(const QModelIndex &parent) const
-{
-    if (parent.isValid())
-    {
-        qWarning() << "hilfe" << __LINE__;
-        return -1;
-    }
-    return 1;
-}
-
 QVariant DevicesModel::data(const QModelIndex &index, int role) const
 {
     if (!index.isValid())
@@ -80,7 +50,8 @@ QVariant DevicesModel::data(const QModelIndex &index, int role) const
         return {};
     }
 
-    if (index.row() < 0 || index.row() >= m_controller->lightProject().lights.size())
+    const auto &lights = m_controller->lightProject().lights;
+    if (index.row() < 0 || index.row() >= lights.size())
     {
         qWarning() << "hilfe" << __LINE__;
         return {};
@@ -92,7 +63,7 @@ QVariant DevicesModel::data(const QModelIndex &index, int role) const
         return {};
     }
 
-    const auto &light = m_controller->lightProject().lights.at(index.row());
+    const auto &light = lights.at(index.row());
 
     switch (role)
     {
@@ -121,7 +92,8 @@ QMap<int, QVariant> DevicesModel::itemData(const QModelIndex &index) const
         return {};
     }
 
-    if (index.row() < 0 || index.row() >= m_controller->lightProject().lights.size())
+    const auto &lights = m_controller->lightProject().lights;
+    if (index.row() < 0 || index.row() >= lights.size())
     {
         qWarning() << "hilfe" << __LINE__;
         return {};
@@ -133,7 +105,7 @@ QMap<int, QVariant> DevicesModel::itemData(const QModelIndex &index) const
         return {};
     }
 
-    const auto &light = m_controller->lightProject().lights.at(index.row());
+    const auto &light = lights.at(index.row());
 
     return {
         { Qt::DisplayRole, light.name },
diff --git a/devicesmodel.h b/devicesmodel.h
index 353b94d..b4c964c 100644
--- a/devicesmodel.h
+++ b/devicesmodel.h
@@ -4,22 +4,19 @@
 
 #include "dmxcontroller.h"
 
-class DevicesModel : public QAbstractItemModel
+class DevicesModel : public QAbstractListModel
 {
     Q_OBJECT
     Q_PROPERTY(DmxController* controller READ controller WRITE setController NOTIFY controllerChanged)
 
 public:
-    explicit DevicesModel(QObject *parent = nullptr);
+    using QAbstractListModel::QAbstractListModel;
 
     DmxController *controller() { return m_controller; }
     const DmxController *controller() const { return m_controller; }
     void setController(DmxController *controller);
 
-    QModelIndex index(int row, int column, const QModelIndex &parent) const override;
-    QModelIndex parent(const QModelIndex &child) const override;
     int rowCount(const QModelIndex &parent) const override;
-    int columnCount(const QModelIndex &parent) const override;
     QVariant data(const QModelIndex &index, int role) const override;
     QMap<int, QVariant> itemData(const QModelIndex &index) const override;
     QHash<int, QByteArray> roleNames() const override;
diff --git a/devicetyperegistersmodel.cpp b/devicetyperegistersmodel.cpp
new file mode 100644
index 0000000..e5b7c78
--- /dev/null
+++ b/devicetyperegistersmodel.cpp
@@ -0,0 +1,126 @@
+#include "devicetyperegistersmodel.h"
+
+#include <utility>
+
+#include <QDebug>
+#include <QCoreApplication>
+#include <QQmlEngine>
+
+void DeviceTypeRegistersModel::setController(DmxController *controller)
+{
+    if (m_controller == controller)
+        return;
+
+    beginResetModel();
+    m_controller = controller;
+    endResetModel();
+    emit controllerChanged(m_controller);
+}
+
+void DeviceTypeRegistersModel::setDeviceTypeId(int deviceTypeId)
+{
+    if (m_deviceTypeId == deviceTypeId)
+        return;
+
+    beginResetModel();
+    m_deviceTypeId = deviceTypeId;
+    endResetModel();
+    emit deviceTypeIdChanged(m_deviceTypeId);
+}
+
+int DeviceTypeRegistersModel::rowCount(const QModelIndex &parent) const
+{
+    if (parent.isValid())
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return -1;
+    }
+
+    if (!m_controller)
+        return 0;
+
+    if (m_deviceTypeId == -1)
+        return 0;
+
+    auto lightType = m_controller->lightProject().lightTypes.findById(m_deviceTypeId);
+    if (!lightType)
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return 0;
+    }
+
+    return lightType->registers.size();
+}
+
+QVariant DeviceTypeRegistersModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    if (!m_controller)
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    if (m_deviceTypeId == -1)
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    auto lightType = m_controller->lightProject().lightTypes.findById(m_deviceTypeId);
+    if (!lightType)
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    if (index.row() < 0 || index.row() >= lightType->registers.size())
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    if (index.column() != 0)
+    {
+        qWarning() << "hilfe" << __LINE__;
+        return {};
+    }
+
+    const auto &lightTypeRegister = lightType->registers.at(index.row());
+
+    switch (role)
+    {
+    case Qt::DisplayRole:
+    {
+        return QMetaEnum::fromType<LightTypeRegisterType>().valueToKey(std::to_underlying(lightTypeRegister.type));
+    }
+    case Qt::EditRole:
+        return QVariant::fromValue(lightTypeRegister.type);
+    }
+
+    return {};
+}
+
+QMap<int, QVariant> DeviceTypeRegistersModel::itemData(const QModelIndex &index) const
+{
+    // TODO
+}
+
+QHash<int, QByteArray> DeviceTypeRegistersModel::roleNames() const
+{
+    // TODO
+}
+
+namespace {
+void registerDenShit()
+{
+    qmlRegisterType<DeviceTypeRegistersModel>("com.büro", 1, 0, "DeviceTypeRegistersModel");
+}
+}
+Q_COREAPP_STARTUP_FUNCTION(registerDenShit)
+
diff --git a/devicetyperegistersmodel.h b/devicetyperegistersmodel.h
new file mode 100644
index 0000000..3a0c937
--- /dev/null
+++ b/devicetyperegistersmodel.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <QAbstractItemModel>
+
+#include "dmxcontroller.h"
+
+class DeviceTypeRegistersModel : public QAbstractListModel
+{
+    Q_OBJECT
+    Q_PROPERTY(DmxController* controller READ controller WRITE setController NOTIFY controllerChanged)
+    Q_PROPERTY(int deviceTypeId READ deviceTypeId WRITE setDeviceTypeId NOTIFY deviceTypeIdChanged)
+
+public:
+    using QAbstractListModel::QAbstractListModel;
+
+    DmxController *controller() { return m_controller; }
+    const DmxController *controller() const { return m_controller; }
+    void setController(DmxController *controller);
+
+    int deviceTypeId() const { return m_deviceTypeId; }
+    void setDeviceTypeId(int deviceTypeId);
+
+    int rowCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    QMap<int, QVariant> itemData(const QModelIndex &index) const override;
+    QHash<int, QByteArray> roleNames() const override;
+
+signals:
+    void controllerChanged(DmxController *controller);
+    void deviceTypeIdChanged(int deviceTypeId);
+
+private:
+    DmxController *m_controller{};
+    int m_deviceTypeId{-1};
+};
diff --git a/devicetypesmodel.cpp b/devicetypesmodel.cpp
index 380ae06..99a0bc4 100644
--- a/devicetypesmodel.cpp
+++ b/devicetypesmodel.cpp
@@ -1,40 +1,20 @@
 #include "devicetypesmodel.h"
 
+#include <QDebug>
 #include <QCoreApplication>
 #include <QQmlEngine>
 
 constexpr auto IdRole = Qt::UserRole;
 
-DeviceTypesModel::DeviceTypesModel(QObject *parent) :
-    QAbstractItemModel{parent}
-{
-}
-
 void DeviceTypesModel::setController(DmxController *controller)
 {
-    if (m_controller != controller)
-    {
-        beginResetModel();
-        m_controller = controller;
-        endResetModel();
-        emit controllerChanged(m_controller);
-    }
-}
+    if (m_controller == controller)
+        return;
 
-QModelIndex DeviceTypesModel::index(int row, int column, const QModelIndex &parent) const
-{
-    if (parent.isValid())
-    {
-        qWarning() << "hilfe" << __LINE__;
-        return {};
-    }
-
-    return createIndex(row, column, nullptr);
-}
-
-QModelIndex DeviceTypesModel::parent(const QModelIndex &child) const
-{
-    return {};
+    beginResetModel();
+    m_controller = controller;
+    endResetModel();
+    emit controllerChanged(m_controller);
 }
 
 int DeviceTypesModel::rowCount(const QModelIndex &parent) const
@@ -51,16 +31,6 @@ int DeviceTypesModel::rowCount(const QModelIndex &parent) const
     return m_controller->lightProject().lightTypes.size();
 }
 
-int DeviceTypesModel::columnCount(const QModelIndex &parent) const
-{
-    if (parent.isValid())
-    {
-        qWarning() << "hilfe" << __LINE__;
-        return -1;
-    }
-    return 1;
-}
-
 QVariant DeviceTypesModel::data(const QModelIndex &index, int role) const
 {
     if (!index.isValid())
@@ -75,7 +45,9 @@ QVariant DeviceTypesModel::data(const QModelIndex &index, int role) const
         return {};
     }
 
-    if (index.row() < 0 || index.row() >= m_controller->lightProject().lightTypes.size())
+    const auto &lightTypes = m_controller->lightProject().lightTypes;
+
+    if (index.row() < 0 || index.row() >= lightTypes.size())
     {
         qWarning() << "hilfe" << __LINE__;
         return {};
@@ -87,7 +59,7 @@ QVariant DeviceTypesModel::data(const QModelIndex &index, int role) const
         return {};
     }
 
-    const auto &lightType = m_controller->lightProject().lightTypes.at(index.row());
+    const auto &lightType = lightTypes.at(index.row());
 
     switch (role)
     {
@@ -113,7 +85,9 @@ QMap<int, QVariant> DeviceTypesModel::itemData(const QModelIndex &index) const
         return {};
     }
 
-    if (index.row() < 0 || index.row() >= m_controller->lightProject().lightTypes.size())
+    const auto &lightTypes = m_controller->lightProject().lightTypes;
+
+    if (index.row() < 0 || index.row() >= lightTypes.size())
     {
         qWarning() << "hilfe" << __LINE__;
         return {};
@@ -125,7 +99,7 @@ QMap<int, QVariant> DeviceTypesModel::itemData(const QModelIndex &index) const
         return {};
     }
 
-    const auto &lightType = m_controller->lightProject().lightTypes.at(index.row());
+    const auto &lightType = lightTypes.at(index.row());
 
     return {
         { Qt::DisplayRole, lightType.name },
diff --git a/devicetypesmodel.h b/devicetypesmodel.h
index 798968f..b2c43fe 100644
--- a/devicetypesmodel.h
+++ b/devicetypesmodel.h
@@ -4,22 +4,19 @@
 
 #include "dmxcontroller.h"
 
-class DeviceTypesModel : public QAbstractItemModel
+class DeviceTypesModel : public QAbstractListModel
 {
     Q_OBJECT
     Q_PROPERTY(DmxController* controller READ controller WRITE setController NOTIFY controllerChanged)
 
 public:
-    explicit DeviceTypesModel(QObject *parent = nullptr);
+    using QAbstractListModel::QAbstractListModel;
 
     DmxController *controller() { return m_controller; }
     const DmxController *controller() const { return m_controller; }
     void setController(DmxController *controller);
 
-    QModelIndex index(int row, int column, const QModelIndex &parent) const override;
-    QModelIndex parent(const QModelIndex &child) const override;
     int rowCount(const QModelIndex &parent) const override;
-    int columnCount(const QModelIndex &parent) const override;
     QVariant data(const QModelIndex &index, int role) const override;
     QMap<int, QVariant> itemData(const QModelIndex &index) const override;
     QHash<int, QByteArray> roleNames() const override;
diff --git a/dmxcontroller.cpp b/dmxcontroller.cpp
index bb9dedb..4290c5f 100644
--- a/dmxcontroller.cpp
+++ b/dmxcontroller.cpp
@@ -12,10 +12,31 @@ DmxController::DmxController(QObject *parent) :
     m_counter{},
     m_lightProject {
         .lightTypes {
-            { .id=0, .name="Stairville MH-X50+" },
-            { .id=1, .name="RGBW Strahler" },
-            { .id=2, .name="RGB Strahler" },
-            { .id=3, .name="Nebelmaschine" }
+            {
+                .id=0,
+                .name="Stairville MH-X50+"
+            },
+            {
+                .id=1,
+                .name="RGBW Strahler",
+                .registers {
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Dimmer },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Red },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Green },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Blue },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::White },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Strobo },
+                    LightTypeRegisterConfig { .type = LightTypeRegisterType::Dummy }
+                }
+            },
+            {
+                .id=2,
+                .name="RGB Strahler"
+            },
+            {
+                .id=3,
+                .name="Nebelmaschine"
+            }
         },
         .lights {
             { .id=0,  .name="Lampe 1",       .lightTypeId=1, .address=32, .position{1,0,0} },
diff --git a/lightproject.h b/lightproject.h
index 0add29b..4d430bf 100644
--- a/lightproject.h
+++ b/lightproject.h
@@ -1,14 +1,65 @@
 #pragma once
 
 #include <vector>
+#include <algorithm>
 
 #include <QString>
 #include <QVector3D>
+#include <QMetaEnum>
+#include <QMetaType>
+
+namespace hilfe {
+Q_NAMESPACE
+enum class LightTypeRegisterType
+{
+    Dummy,
+    Dimmer,
+    Red,
+    Green,
+    Blue,
+    White,
+    Strobo,
+    Shutter
+};
+Q_ENUM_NS(LightTypeRegisterType)
+} // namespace hilfe
+
+Q_DECLARE_METATYPE(hilfe::LightTypeRegisterType)
+
+using LightTypeRegisterType = hilfe::LightTypeRegisterType;
+
+struct LightTypeRegisterConfig
+{
+    LightTypeRegisterType type;
+};
 
 struct LightTypeConfig
 {
     int id;
     QString name;
+    std::vector<LightTypeRegisterConfig> registers;
+};
+
+class LightTypesContainer : public std::vector<LightTypeConfig>
+{
+    using base_t = std::vector<LightTypeConfig>;
+
+public:
+    using base_t::base_t;
+
+    LightTypeConfig *findById(int id)
+    {
+        auto iter = std::find_if(std::begin(*this), std::end(*this),
+                                 [&id](const LightTypeConfig &lightType){ return lightType.id == id; });
+        return iter != std::end(*this) ? &*iter : nullptr;
+    }
+
+    const LightTypeConfig *findById(int id) const
+    {
+        auto iter = std::find_if(std::begin(*this), std::end(*this),
+                                 [&id](const LightTypeConfig &lightType){ return lightType.id == id; });
+        return iter != std::end(*this) ? &*iter : nullptr;
+    }
 };
 
 struct LightConfig
@@ -22,6 +73,6 @@ struct LightConfig
 
 struct LightProject
 {
-    std::vector<LightTypeConfig> lightTypes;
+    LightTypesContainer lightTypes;
     std::vector<LightConfig> lights;
 };