Creation of new part with master/slave

Hello,

I am trying to generate a new part, which is an KNX actuator with 8 single output ports. The output ports are named A, B, C, ..., H. When I use the master/slave I will get the contacts connected to the master, but I would like to have the single contacts listed according to the channels A ... H, instead of list them under the part.
Is there a way to solve the problem?

Would be great to get this working.

Regards,
Benjamin