[Enterprise Architect] Best Ways For IBD Architecture

[Said_Marouni]

Hello,

I’m struggling to find the best way to represent some architectural concept in my IBD (specially how to structure inputs/outputs in the Block)
The following example will represent my problem using some drawing elements.

Context

An architecture of 2 blocs that are linked between them by three ports (A,B & C)
The focus will be on pin A in both blocs
As shown in the illustration, the port A1 contain three signals (Out1, Out2 & Out3)

At block level :
The need is that A2 port will consume the signal A1
At sub blocks level :
In1 of sub bloc 2.1 consume just Out1 of sub bloc 1.1
In2 of sub bloc 2.2 consume just Out2 of sub bloc 1.2
In3 of sub bloc 2.3 consume just Out3 of sub bloc 1.3

Please check this file for illustration : https://drive.google.com/file/d/1qtJADjvKlX0D04pjFKZHW1Pi1Sij5LMC/view?usp=sharing

Questions :
What is the best way to define ports in tree structure in order to cover needs described above ?
To realize a good IBD and BDD, what is the best way to link ports to cover needs described above ?

Thanks in advance.