Combine Duplicate Block Definitions dialog box
The Combine Duplicate Block Definitions dialog box allows you to search the drawing for duplicate block definitions and replace all such block instances by the most recent of these duplicates. See also the related article OVERKILL command.

- Entity properties to ignore
- Comparison tolerance
- Options
Entity properties to ignore
Specifies the block properties to ignore when searching for duplicate block definitions.
Comparison tolerance
Sets the tolerance for overlapping blocks. If set to 0 (zero), entities must match completely before being evaluated in the overkill process.
Options
- Purge duplicate block definitions
- Deletes duplicate block definitions.