|  | @@ -99,10 +99,10 @@ var TREE_SHEET_CONTROLLER = {
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				|  |  |              let length = nodes.length;
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				|  |  |              if (nodes.length > 0) {
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				|  |  |                  TREE_SHEET_HELPER.massOperationSheet(this.sheet, function () {
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				|  |  | -                    that.sheet.addRows(nodes[length - 1].serialNo(), length);
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				|  |  | +                    that.sheet.addRows(nodes[0].serialNo(), length);
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				|  |  |                      TREE_SHEET_HELPER.refreshTreeNodeData(that.setting, that.sheet, nodes, false);
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				|  |  | -                    that.setTreeSelected(nodes[length - 1]);
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				|  |  | -                    that.sheet.setSelection(nodes[length - 1].serialNo(), sels[0].col, 1, 1);
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				|  |  | +                    that.setTreeSelected(nodes[0]);
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				|  |  | +                    that.sheet.setSelection(nodes[0].serialNo(), sels[0].col, 1, 1);
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				|  |  |                      //that.sheet.showRow(newNode.serialNo(), GC.Spread.Sheets.VerticalPosition.center);
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				|  |  |                  });
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				|  |  |              }
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				|  | @@ -183,7 +183,6 @@ var TREE_SHEET_CONTROLLER = {
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				|  |  |          };
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				|  |  |          controller.prototype.m_delete = function (nodes) {
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				|  |  |              var that = this, sels = this.sheet.getSelections();
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				|  |  | -            debugger;
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				|  |  |              if (nodes.length > 0) {
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				|  |  |                  if (this.tree.m_delete(nodes)) {
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				|  |  |                      TREE_SHEET_HELPER.massOperationSheet(this.sheet, function () {
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				|  | @@ -214,7 +213,6 @@ var TREE_SHEET_CONTROLLER = {
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				|  |  |              }
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				|  |  |          };
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				|  |  |          controller.prototype.downLevel = function () {
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				|  |  | -            debugger;
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				|  |  |              var that = this;
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				|  |  |              if (this.tree.selected) {
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				|  |  |                  if (this.tree.selected.downLevel()) {
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