private void Menu_AddStat_Click(object sender, System.EventArgs e)
        {
            MaskInfo info = new MaskInfo();

            TreeNode node = new TreeNode(info.ToString());

            node.Tag = info;

            this.C_GroupInfoTree.Nodes.Add(node);

            UpdateTextDisplay();
        }
        private void Menu_CopyStat_Click(object sender, System.EventArgs e)
        {
            TreeNode node = this.C_GroupInfoTree.SelectedNode;

            if (node == null)
            {
                return;
            }

            MaskInfo info = node.Tag as MaskInfo;

            MaskInfo newInfo = info.Copy();

            TreeNode newNode = new TreeNode(newInfo.ToString());

            newNode.Tag = newInfo;

            this.C_GroupInfoTree.Nodes.Add(newNode);

            this.UpdateTextDisplay();

            this.C_GroupInfoTree.SelectedNode = node;
        }