Fictif Parent Link depending on Real Child Links

Hello

NPM 11.0.1 - Network Atlas Mapper.

Assume  2 routers Links in a given Branch should depend on a drawn Link on the Map, so that when one of this routers link goes down , status color should propagates to the drawn main link on the Map.

Note: this main link is just a drawing line which, it's not an object in NPM DB. I need to make it dynamic (Green/Red) by attaching these 2 or more links to it.

Dependency feature doesn't solve this problem as it requires a parent object in NPM database to assign the group (routers links) to that object.

Please advise on how to proceed.

Thank you