|  | 3.1 | Router User Interface
| 3.1.5 | Using IOS editing commands
The user interface includes an enhanced editing mode that provides a set of editing key functions that allow you to edit a command line as it is being typed. Use the key sequences indicated in Figure to move the cursor around on the command line for corrections or changes. Although enhanced editing mode is automatically enabled with the current software release, you can disable it if you have written scripts that do not interact well while enhanced editing is enabled. To disable enhanced editing mode, type "terminal no editing" at the privileged mode prompt. The editing command set provides a horizontal scrolling feature for commands that extend beyond a single line on the screen. When the cursor reaches the right margin, the command line shifts 10 spaces to the left. You cannot see the first 10 characters of the line, but you can scroll back and check the syntax at the beginning of the command. To scroll back, press Ctrl-B or the left arrow key repeatedly until you are at the beginning of the command entry, or press Ctrl-A to return directly to the beginning of the line. In the example shown in Figure , the command entry extends beyond one line. When the cursor first reaches the end of the line, the line is shifted 10 spaces to the left and redisplayed. The dollar sign ( $) indicates that the line has been scrolled to the left. Each time the cursor reaches the end of the line, the line is again shifted 10 spaces to the left. Note: Screen output varies, depending on Cisco IOS software level and router configuration.