Provider/Receiver controls for OU

 Hi all,

We have a intercompany billing scenarios where  Operating unit A of Legal entity X  has to bill Operating unit B of legal entity Y. Now while defining provider/receiver controls for  OU A which is the provider in above case, we defined receiver OU as B , the respecive Legal entity Y ,allowed the cross charge,Processing method as Intercompany billing.

Now my question is if i have three such cases  i.e.  three receiver projects to billed from three different provider projects  respecively , am i need to define each of this receiver project as intercompany billing project by adding three different lines in Provider controls tab of