Beginners and experts alike are bound to make a few mistakes. Before you get too far into the tutorial, here are some powerful but easy-to-use tools to help you recover from accidents:
Backspace
If you make a typing error, press the Backspace key to back up to your error, and then retype your command or response. The Backspace key is in the upper-right corner of the main keyboard area.
Escape (Esc)
This is perhaps the single most important key on your keyboard. When you need to quickly exit a command or a dialog box without making changes, press the Esc key in the upper-left corner of your keyboard. Before AutoCAD 2000, you had to press Esc twice in some instances. In more recent versions, you need to press Esc only once, although it won’t hurt to press it twice. (Press Esc before editing with grips or issuing commands through the keyboard.)
U
If you accidentally change something in the drawing and want to reverse that change, click the Undo tool in the Standard Annotation toolbar (the left-pointing curved arrow). You can also type
U↵ at the Command prompt. Each time you do this, AutoCAD undoes one operation at a time, in
reverse order. The last command performed is undone first, then the next-to-last command, and so on. The prompt displays the name of the command being undone, and the drawing reverts to its state prior to that command. If you need to, you can undo everything back to the beginning of an editing session.
Undo
If you decide that you want to back up a few steps of an operation you just performed, you can use the Undo tool (the left-pointing curved arrow) in the Standard Annotation toolbar. Or, type Undo ↵. Each click of the Undo tool steps you back one operation. You can also select the exact command to back up to by using the Undo drop-down list
You can open the Undo drop-down list by clicking the downward-pointing arrow found to the right of the Undo tool.
Redo
If you accidentally undo one too many commands, you can redo the last undone command by clicking the Redo tool (the right-pointing curved arrow) in the Standard Annotation toolbar. Or, type Redo ↵. In AutoCAD 2008, you can redo several operations that you may have undone with the Undo command. You can also select the exact command to redo to by using the Redo drop-down list. To open the Redo drop-down list, click the downward-pointing arrow found to the right of the Redo tool
Backspace
If you make a typing error, press the Backspace key to back up to your error, and then retype your command or response. The Backspace key is in the upper-right corner of the main keyboard area.
Escape (Esc)
This is perhaps the single most important key on your keyboard. When you need to quickly exit a command or a dialog box without making changes, press the Esc key in the upper-left corner of your keyboard. Before AutoCAD 2000, you had to press Esc twice in some instances. In more recent versions, you need to press Esc only once, although it won’t hurt to press it twice. (Press Esc before editing with grips or issuing commands through the keyboard.)
U
If you accidentally change something in the drawing and want to reverse that change, click the Undo tool in the Standard Annotation toolbar (the left-pointing curved arrow). You can also type
U↵ at the Command prompt. Each time you do this, AutoCAD undoes one operation at a time, in
reverse order. The last command performed is undone first, then the next-to-last command, and so on. The prompt displays the name of the command being undone, and the drawing reverts to its state prior to that command. If you need to, you can undo everything back to the beginning of an editing session.
Undo
If you decide that you want to back up a few steps of an operation you just performed, you can use the Undo tool (the left-pointing curved arrow) in the Standard Annotation toolbar. Or, type Undo ↵. Each click of the Undo tool steps you back one operation. You can also select the exact command to back up to by using the Undo drop-down list
You can open the Undo drop-down list by clicking the downward-pointing arrow found to the right of the Undo tool.
Redo
If you accidentally undo one too many commands, you can redo the last undone command by clicking the Redo tool (the right-pointing curved arrow) in the Standard Annotation toolbar. Or, type Redo ↵. In AutoCAD 2008, you can redo several operations that you may have undone with the Undo command. You can also select the exact command to redo to by using the Redo drop-down list. To open the Redo drop-down list, click the downward-pointing arrow found to the right of the Redo tool
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