Possible to expand shared parent members in a calc?

@expand

Content

I have a parent called "Alternate" that contains two shared parents ParentA and ParentB.  I'd like to refer to "Alternate" in a FIX and have it return children C1,C2,C3,C4 (the children of ParentA and ParentB).  I tried @expand but it isn't working with the share parent reference.  Is there another way?

FIX (@Expand("@Descendants",@relative("Alternate",0), 0, LayerOnly))

 Entity

-----ParentA

--------C1

--------C2

-----ParentB

--------C3

--------C4

 

Alternate

-----ParentA (Shared)

-----ParentB (Shared)

Group