How to handle cross holding in FCCS

Z Co being a joint venture is held by A Co & B Co with 51% and 49 % ownership share.

And A Co & B Co's are held by its parent Co-P co Ltd as a wholly owned subsidiaries. P Co also holds 100% of Z Co.

How to define this kind of cross holding in the entity & ownership structure by ensuring P Co is holding all the 3 entities as subsidiaries and EPU calculated in A& B Co is eliminated when data is rolling up to P Co