Để thêm một lệnh vào thanh công cụ, hãy làm theo các bước sau: a. Trong hộp điều khiển danh sách, chọn lệnh trên mà bạn muốn lệnh mới xuất hiện. b. Nhấp vào nút Add để hiển thị hộp thoại Add Command, hiển thị trên bên phải trong hình . | 378 How to Do Everything with Microsoft Office Excel 2003 FIGURE 17-6 The Rearrange Commands dialog box provides a more orderly means of rearranging a toolbar menu or menu bar. 6. To add a command to the toolbar follow these steps a. In the Controls list box select the command above which you want the new command to appear. b. Click the Add button to display the Add Command dialog box shown on the right in Figure 17-6. c. In the Categories list box select the category of command to display its contents. d. In the Commands list box select the command. e. Click the OK button. 7. To remove a command from the toolbar select it and click the Delete button. 8. To move a command to a different location on the toolbar select it and then click the Move Up button or the Move Down button as appropriate. 9. If necessary change the image text or both for an item by selecting it and using the commands on the Modify Selection menu. See Change the Appearance of a Toolbar Button Menu Item or Menu later in this chapter for details. CHAPTER 17 Customize Excel s Interface 379 10. Click the Close button to close the Rearrange Commands dialog box. 11. Click the Close button to close the Customize dialog box. Create and Delete Custom Toolbars As well as customizing Excel s built-in toolbars you can create custom toolbars as necessary. For example you might create a custom toolbar to contain the commands and macros you use frequently allowing you to dispense with the Standard and Formatting toolbars to free up more screen space. To create a custom toolbar click the New button on the Toolbars tab of the Customize dialog box enter the name in the New Toolbar dialog box and click the OK button. Excel automatically displays the toolbar you created so that you can add buttons to it by using the Customize dialog box or the Rearrange Commands dialog box. If you no longer need a custom toolbar you can delete it. To do so select the toolbar on the Toolbars tab of the Customize dialog box click the