Using Dynamic Blocks and Tables - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 474

the door width to change, and you'll associate a Scale action to allow the door
swing to change. Follow these steps:
1. Make sure Parameters is the active palette in the Block Authoring
Palettes panel, and then click the Linear Parameter icon (see
Figure 9.42).
FiGuRE 9.42 The Linear parameter in the Block Authoring palettes
2. Make sure the Endpoint osnap is running, click the lower-left corner
of the door, and then click the open endpoint of the door swing.
3. Move the cursor to position the dimension symbol a little to the left
of the door block, and then click to place it (see Figure 9.43).
FiGuRE 9.43 The Linear parameter is placed.