Creates an attribute definition for storing data in a block.
Button
Ribbon: Insert tab 
Attributes
panel Define
AttributesNot available on the ribbon
in the current workspace.
Menu: DrawBlockDefine
AttributesNot available in menus
in the current workspace. The Attribute Definition dialog box is displayed.
If you enter -attdef at the Command prompt, options are displayed.
An attribute is an object that is created and included with a block definition. Attributes can store data such as part numbers, product names, and so on.
Defines the mode; attribute tag, prompt, and value; insertion point; and text settings for an attribute.
