Short description of Block Attribute Modifier 2.0: With Block Attribute Modifier (BAM) you can easily automate the process of modifying block attribute values in AutoCAD drawing files. Use BAM to delete attributes, clear attribute values, replace attribute values, and find and replace attribute values. BAM runs very quickly and can process thousands of drawing files with the click of only one button! BAM is compatible with all AutoCAD drawing versions 2000 and above.