Using Dynamic Blocks and Tables - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 464

FiGuRE 9.30 The Edit Attributes dialog box with a field for the Area Of Room value
FiGuRE 9.31 The first A-ROOM-INFO block is inserted.
Editing Attributes
The remaining four block insertions are almost identical to the first one, with just a
few specific changes: changing the room name and referencing a different polyline.
Follow these steps to copy and modify the block and attributes that you've created:
1. Select the LIVING ROOM attribute and, using the Node osnap, copy
it to the node at the insertion point for the BATH text.
2. Double-click the new attribute to open the Enhanced Attribute Editor
dialog box and select the RM_AREA row, as shown in Figure 9.32.