Adding Arrows

I know arrows are not a basic feature of the Data Model but if we have support for arrows we can have a lineage of the derived tables from its base table. 

More Context:

Once the data is available in our fact table then we would have different queries which will be derived a table/view/materialized views to show different metrics/data at different grain. Then if we have the arrows we can add the lineage under that subject area which will be helpful for the end-users to understand the lineage properly and developer to know the impact of any table change to its downstream tables in one place.

Current process:

Currently, to show derived tables we need to use different tools like draw.io