How can I address the slaves for my master device?

You were right now, I figured it out. After getting to know how to implement this. I felt vey bad for my self.

@hzrnbgy Thanks your answerfett gedruckter Text, slightly opened my mind and I also stoped thinking out of box and started thinking very simply and this leads to my answer.

Anyways thanks to all whoever spend their time and energy to enlighten me in my project.