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variable governs whether you work in a dialog box or at the command prompt
when you use certain commands. See appendix B, “System Variables”.
Executing Commands
The process of executing a command begins by starting the command, using
one of several methods. For some commands, such as
REGEN (page 889) , no
further action is required. For other commands, you must respond by providing
additional information or actions in order to complete the command.
As you work with commands, note that right-clicking in the drawing area
either acts as Enter or displays a shortcut menu. You can control this behavior
in the Application Preferences dialog box or with the
SHORTCUTMENU (page
1471) system variable.
Starting Commands
You can start a command by doing one of the following:
 Select the command from a menu, tool set, status bar, or shortcut menu.
 Enter the command name or command alias at the Command prompt
and press ENTER or SPACEBAR.
In this Command Reference, near the beginning of each command description
is a command access section, listing the specific ways you can start that
command. For example, following is the command access section for the PAN
(page 767) command:
Menu: View  Pan  Realtime
Toolbar: Status bar
Shortcut menu: With no objects selected, right-click in the drawing area,
and choose Pan.
Command entry: pan (or 'pan for transparent use)
The availability of certain shortcut menus depends on the current setting of
the
SHORTCUTMENU (page 1471) system variable. The instructions in the
command access sections assume that you have made the indicated menu
available.
You can exit a command at any time by pressing ESC.
2 | Chapter 1 Introduction