If you work in 3d you should typically work within the SWA. If you have several buildings you can set them up at 0,0,0 and horizontal to the view. Reference these buildings to a master coordination file, where you would move the reference files to the correct location and rotation. from here you then PUSH the GEO coordinates to each reference file.
This works well. You can swap between the Master coordination file and each building. However, what it doesn't do it show you the true XYZ value of the site in the buildings, nor its rotation ......they are all 0,0,0.
it means a users will never know its true GEO location or rotation, plus the ACS are not saved to allow a user to swap from True North to Project North.
If this functionally was added this would make it 10000x better for the user and those the receive the files in another format i.e. DWG.