Yes, you can create a dynamic member formula that returns all the relationship information. The consolidation member needs to be C#OwnerPostAdj, C#Elimination, C#Share to get access to the parent member. The code for the dynamic calc member formula looks like this:
Return api.Entity.PercentOwnership()
There are function for all relational information in the entity class. The definition for PercentOwnership is:
api.Entity.PercentOwnership(optional byval entityId as integer, optional byval parentId as integer, optional byval varyByScenarioTypeId as integer, optional byval varyByTimeId as integer) as decimal
If you don't specify the optional parameters, it will use the dataunits pov information.