To Add Associative Dimensions from Picked Points to an AEC Dimension

1. Verify that OSNAP is turned on.
2. Select the AEC dimension to which you want to add associative points, and click AEC Dimension tabModify panelAdd Extension Lines Find.
3. Select the AEC object OSNAP points you want to dimension.
   Note: OSNAP points on AutoCAD objects will be filtered out of the dimension.
4. Press Enter.
5. Select the AEC dimension chain to which the points should be added.

Adding and offsetting non-style defined dimension point to an AEC dimension