MySql replication with Master-Master and master to slaves

[Nils Kariya]

I want to implement replication in MySQL.

My topology for replication are as below:

I have different branch and all branches are connected with replication to each other. This way replication I have done with my current system.

But now I want to replicate branch's database to different till connected with it.

For example: I have branches: Ho, B1, B2, B3.

Currently I have done replication is following flow: Ho->B1, B1-> B2, B2->B3, B3->Ho and its working fine.

But now I want to replicate My branch database to tills connected with it.
So for example: I have 3 Tills at Branch B1 than Brnach and Head Office should work as above scenarios but My Brnach B1 should replicate like

B1 - > Till 1, B1- > Till 2 , B1-> Till 3.

And same for other brnach having till than branch's main Database will replicate with Till database.

But HO and Branches repliaction should work as currently working scenarios as above.

Please let me how I can work with such a scenarios.

Thanks in Adavnce.