To query and edit an existing alignment point, go to
Ribbon: DM Plumbing->Building-> 
Query Alignment Point Area
Pulldown Menu: DM Plumbing->Alignment Points->Query Alignment Point Area
If there is only one alignment point on the drawing, the Query Alignment Point Area dialog box will appear.
If there is more than one alignment point on the drawing, you will be prompted to indicate which alignment point you want to query.
Specify point in alignment point area to use:
Select a point inside the alignment point area that corresponds to the alignment point you want to query.
The Query Alignment Point Area dialog box will appear.
Query Alignment Point Area Dialog Box
Changes can be made to the alignment point in the same way as when it was inserted. See the Common Alignment Point Information section for more information.