AS Batch Attribute Editor (AutoLISP)

This tool lets you select an area in your drawing, list unique block names starting with AS*, list unique attribute tags for a chosen block, and then change one attribute value for all matching blocks inside the selected area.

Files

AS_AttrBatch.lsp — AutoLISP logic (this is the only required file) No .dcl file is used — this is a command-line tool.

Install / Run

Copy AS_AttrBatch.lsp into any folder.
In AutoCAD run APPLOAD and load AS_AttrBatch.lsp.
Run command: ASBATCHATTR

How to use

Select a zone/part of the drawing (window/crossing selection is fine), then press Enter.
Choose the block:
- Option Pick: click a block in the selected zone
- Option List: choose from a numbered list
- The list shows unique block names with a count like AS_VFD (50)
Choose the attribute tag from the numbered list.
Type the new value and press Enter.

Only the chosen attribute tag is updated. All other attributes remain unchanged.