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 Open Documents: Choose this option to see which documents are already open, and click an item to switch to it. This feature, like Recent Documents, isn't necessary because a series of tabs appears across the top of the graphic screen, one for each open drawing. Hovering the cursor over a tab produces a quick preview of its drawing, which makes jumping from drawing to drawing much easier compared to earlier releases.

 Options: Click this button to open the Options dialog box, where you can adjust hundreds of system settings. You can also open Options by typing OP (the alias for the OPtions command).

 Search: When you’re unsure of a command name or you want help on a topic, just start typing in the Search bar, at the top of the Application menu. AutoCAD quickly displays a categorized list, complete with links to start commands or to access the online Help system. See Figure 2-4.You can also search directly from the command line. Just start typing the name of a command. As you type, AutoCAD displays a list of what it thinks you are searching for. When you see the one you want, click the question mark beside its name to get help about the selected item.