Archimate automatic nesting (#1711)

Dear Dusan

for Archimate I am using Archimate-Tool (archi) but I was intested to see if I could integrate some Archimate models into normal SIM projects.

I was surprised, that the two structural relationships (composition and aggregation) do not support automatic nesting - which is an important feature for me.

May I only missed this feature?

Thanks for checking this request.

-Sebastian

Steps for reproduction:

1. Creation of parent and children elements

2. Adding compositon or aggregation relationship

3. Moving the child elements into the parent element

Desired outcome: Relationship of nested elements is hidden.

The Archimate 3.1 specification shows the behaviour of nested elements. (5.1.1 Composition Relationship; 5.1.2 Aggregation Relationship)

Reference: https://pubs.opengroup.org/architecture/archimate3-doc/chap05.html#_Toc416025158