Commands in the Customize User Interface (CUI) Editor are used to define custom macros which are used to start standard and custom commands which can be executed from the command prompt in AutoCAD.
You can easily create, edit, and reuse commands. The Customize tab of the Customize User Interface (CUI) Editor allows you to add any command listed in the Command List pane to a toolbar, menu, and one of the other user interface element that can be customized.
You can create a new command from scratch, copy an existing command to create a new command, or edit the properties of an existing command. When you create or edit a command, the properties you can define are the command name, description, extended help file, command display name, macro, tags, element ID (for new commands only), and small or large image.
A macro defines the action that results when an interface element is selected. A macro accomplishes a drawing task that would otherwise take a series of actions by a user.
The way a menu or ribbon button item is displayed indicates its availability in the program. A menu or ribbon button item can be displayed as:
Ribbon button items do not display a check mark when marked; only a border is displayed.
With search tags, you can search for a command or a group of commands with the application menu.
Tooltips are descriptive messages that are displayed near the cursor when it hovers over a toolbar or panel button, or menu item.
Status line help messages are simple, descriptive messages that are displayed on the status line (at the bottom of the application window) when the cursor hovers over a menu item.
Images can be assigned to commands, and can be of two different types: standard and custom. Standard commands come with AutoCAD in a library, while custom commands are created and managed from the Button Image pane and the Button Editor dialog box in the Customize User Interface Editor.