RB941-2nD (Hublite) 3 pppoe client

hi, masters, I greet you with respect…

Normally we install one lite5 for each customer. We define 1 pppoeclient in Lite5.

But I have 3 customers in a building. I want to serve using 1 lite5 and 1 hublite. How can I do this safely? How do I configure it in Hublite?