AttSync

Updates the attributes of all instances of a specified block with current attribute definitions

? - lists block with attributes

This option lists all block definitions which contain attributes.

Name - select by name

Allows to specify the block definition to be synchronized by entering its name.

Select - select by entity

This option allows to specify the block definition to be synchronized by selecting a block reference.

Attsync command synchronizes attributes of existing block references with the current block definition;

attribute values assigned to existing attributes are not changed.

Remarks :

because the block reference and attributes are recreated from block definition, any assigned extended entity data will be lost !