Can you retrieve all of an object's properties and request a constructed attribute at the same time? Of course you can! The post would be a little pointless if I answered NO and stopped RIGHT HERE.
With the AD cmdlets, we all know we can ask for an object and all of its properties by using -Properties * ... but, did you know you can also do this?
Get-ADComputer -Identity HALODC01 -Properties *,ParentGuid
All properties AND a constructed attribute or two... nice!