public void Initialize(GestureModifierConfiguartion model)
        {
            _model = model;

            MoveModelToView();
        }
        private void btnAddModifier_Click(object sender, EventArgs e)
        {
            var mapping = lstMappings.SelectedItem as MappingConfiguration;

            if (mapping == null)
                return;

            GestureModifierConfiguartion modifier = new GestureModifierConfiguartion();

            mapping.Gesture.Modifiers.Add(modifier);
            Int32 currentIndex = lstMappings.SelectedIndex;
            MoveModelToView();
            lstMappings.SelectedIndex = currentIndex;
        }