Index: sources/model/MListModel.h
===================================================================
diff -u -r8c7b9550b05f223be9d094e850e06f9ed80adb70 -rc1e50347c78096b626b2cd1ef32a33b439e88bdd
--- sources/model/MListModel.h	(.../MListModel.h)	(revision 8c7b9550b05f223be9d094e850e06f9ed80adb70)
+++ sources/model/MListModel.h	(.../MListModel.h)	(revision c1e50347c78096b626b2cd1ef32a33b439e88bdd)
@@ -17,23 +17,31 @@
 {
     Q_OBJECT
 
+    Q_PROPERTY(int count READ rowCount NOTIFY countChanged STORED false)
+
 public:
-    explicit MListModel(QObject *parent = nullptr) : QAbstractListModel (parent) { }
+    explicit MListModel(QObject *parent = nullptr);
 
     QHash<int, QByteArray>  roleNames   (                                                                           ) const override;
     int                     rowCount    (const QModelIndex & = QModelIndex()                                        ) const override;
     QVariant                data        (const QModelIndex &vIndex, int vRole = Qt::DisplayRole                     ) const override;
     bool                    setData     (const QModelIndex &vIndex, const QVariant& vValue, int vRole = Qt::EditRole) override;
     void                    clear       (                                                                           );
     void                    setRoleNames(const QHash<int, QByteArray>& vRoleNames                                   );
+    void                    appendRow   (const QHash<int, QVariant> &vData                                          );
+    void                    insertRow   (const int vRow, const QHash<int, QVariant> &vData                          );
+    void                    updateData  (const int vRow, const int vRole, const QVariant& vValue                    );
     MListModel              &operator = (const QList<QHash<int, QVariant>> &src                                     );
 
-public slots:
+public Q_SLOTS:
     QVariantMap             get         (int vRow                                                                   ) const;  // Exposed to QML
 
+Q_SIGNALS:
+    void countChanged();
+
 private:
     QList<QHash<int, QVariant>> _data;
     QHash<int, QByteArray>      _roleNames;
-
 };
-}
+
+} // namespace View