All instances of the shape in the drawing are replaced with insertions of the newly defined block.

Command: SHP2BLK
Select shape entity to convert: Select a shape object
Enter the name of the block to create <default>: Enter a name for the block

Usage Example:
Convert a ground shape into a block.

Command: SHP2BLK
Select shape entity to convert: Select the ground shape object Enter the name of the block to create <GROUND>: Press ENTER to accept the default
Deleting block WMF0.
1 block deleted.
The shape GROUND has been replaced with block GROUND.