It would be handy to be able to re-use certain business units in other projects. Practical example: we develop ETLs for large car groups that are often multi-brand and multi-DMS (ERP). All ERPs do basically the same but give other names to fields and put other table relations.
When a larger group acquires a new smaller dealership they often ask us to integrate it in the BI, meaning starting all the work from scratch for this additional Business Unit.
Therefore it would be handy to reuse / import the business unit from another dealership with the same ERP and just change the source.