Redefining Blocks

Commands: BLOCK, -BLOCK and  INSERT

To redefine a block that was created in the current drawing, you create a new block using the same name.

If the block was inserted from a separate drawing, reinsert that block.

When a block definition is redefined all instances of that block in the current drawing are updated automatically.

See also: Editing blocks and external references.

To redefine an internal block definition

1. Type -block in the command bar, then press Enter.
   The command bar reads: Name for new block, or ? to list existing blocks:

2. Type the name of the block in the command bar and press Enter.
   The command bar reads: The block <name> already exists. Do you want to redefine it? <N>.
   A prompt menu displays.
   
   

3. To redefine the block definition, do one of the following:

4. Type Y, then press Enter.

5. Choose Yes-Redefine block in the prompt menu.

The command bar reads: Insertion point for new block:

4. Specify the insertion point of the new block.
   The command bar reads: Select entities for block.

5. Select the entities for the new block.

6. Right click to create the block.
   The selected entities are removed from the drawing.
   All existing instances of the block are updated.

7. (option) To bring back the selected block entities, type oops in the command bar, then press Enter.

To reload an external drawing as a block

1. Do one of the following

2. Click the Insert Block... tool button () on the Draw 2D toolbar.

3. Choose Insert Block... in the Draw menu.

4. Type insert in the command bar, then press Enter.

The Insert Block dialog opens.

2. On the Insert Block dialog click the Browse, then select the external drawing file.

3. Click the Insert button.
   An Alert box displays.

3. Click the Yes button to redefine the existing block definition.
   The command bar reads: Insertion point for block:

4. Continue with step 3 of the Inserting Blocks procedure.