How to set one catalog/content zone/Smart forms for multiple Requestioning BUs?

We have multiple Requisitioning BUs. For that reason, we have created multiple Catalogs, Content Zones, Smart Forms, etc., to be able to see exactly the same values for each BU. The issue is that it requires a lot of maintenance from us.

Is there a way to create one common catalog with the same Content Zones and Smart Forms and 'share' it somehow with all our Requisitioning BUs?"