ME3Explorer.PackageEditor.cloneTreeToolStripMenuItem_Click C# (CSharp) Method

        private void cloneTreeToolStripMenuItem_Click(object sender, EventArgs e)
        {
            int n = 0;
            if (GetSelected(out n))
            {
                int nextIndex;

                TreeNode rootNode = treeView1.SelectedNode;
                if (n >= 0)
                {
                    nextIndex = pcc.ExportCount;
                    IExportEntry exp = pcc.getExport(n).Clone();
                    pcc.addExport(exp);

                    n = nextIndex + 1;
                }
                else
                {
                    nextIndex = -pcc.ImportCount - 1;
                    ImportEntry imp = pcc.getImport(-n - 1).Clone();
                    pcc.addImport(imp);

                    n = nextIndex;
                }
                cloneTree(n, rootNode);

                RefreshView();
                goToNumber(nextIndex);
            }
        }