Mode
Sets options for attribute values associated with a block when you insert the block in a drawing.
The default values are stored in the AFLAGS system variable. Changing the AFLAGS setting affects the default mode for new attribute definitions and does not affect existing attribute definitions.
Invisible
Specifies that attribute values are not displayed or printed when you insert the block. The ATTDISP command overrides the Invisible mode.
Constant
Assigns attributes a fixed value for the attribute when you insert the block. This setting is used for information that never changes.
Verify
Prompts you to verify that the attribute value is correct when you insert the block.
Preset
Sets the attribute to its default value without displaying a prompt when you insert the block. The Preset option applies only when prompts for attribute values are set to be displayed at the Command prompt (ATTDIA is set to 0).
Lock Position
Locks the location of the attribute within the block reference. When unlocked, the attribute can be moved relative to the rest of the block using grip editing, and multiline attributes can be resized.
Multiple Lines
Specifies that the attribute value can contain multiple lines of text, and lets you specify a boundary width for the attribute.