Consolidation

Hi All ,
i am putting an example for consolidation, request you please help me .

I have the 3 companies CX, CY , CZ and CC ( Consolidation company) in the same database.

CX , CY , CZ and CC has the follwoing accounts.

CX1 CY1 CZ1 CC1

CX2 CY2 CZ2 CC2

CX3 CY3 CZ3 CC3

CX4 CY4 CZ4 CC4

CX3 , CY3 and CZ3 ( Credit balances)
CX4 CY4 and CZ4 ( Debit balances ) these accounts has the intercompany transactions.

Now i want to do the consolidation in the CC company , in this process i have some questions.

a) Now i open the consolidation company and click the Consolidation online - > Elimination rule , In the Elimination rule , which company is the Destination company ( when i click on that it will show all companies ) ?

b) In the lines which accounts i need to select ?

Could you clarify my above questions or if you have any document prepared with the real example , please share the document .

Any sound from pioneers ?