The anchors created by the Stair Anchor Base Plate and Stair Anchor Angle macros are assigned an assembly location of "Shop". These would most always be installed on site not in the shop. Also, assigning the assembly location of "Shop" prevents them from being included on the Anchor List (external list). The assembly location can changed manually under the anchor's Advance Properties but changing the macro would eliminate a potential mistake in ordering anchors from the anchor list if the detailer happens not to remember to change the assembly location manually. One less thing to remember is usually a good thing.
I am using the North American/US installation.
I checked the Management Tool and could not locate a default setting for anchor assembly location. If there is one that I am overlooking please let me know. Thanks.