I would like the ability link model objects that are "siblings" rather than parent/children.

For example, we deploy in multi-cloud. If I have a diagram describing a data flow between an app and a storage bucket, I don't want to show AWS S3 and Azure Blob containers on the diagram, just a generic "cloud storage" container.

I would like to show a relationship between this generic cloud storage container and the cloud-specific infrastructure containers (s3 and blob in this case), so a viewer can navigate to those objects and find e.g. a relevant infra deployment diagram.