Approved Supplier Lists in Multi-Org

 Hi,

We recently started using Approved Supplier Lists and I have some questions. It seems to me that I have to do a lot of work just to  link one of our Items with a Supplier's Item in every org, in every supplier's site.

Can I somehow do this Automatically or with less steps ?

For example

I have a multi-org environment with Company-1, Company-2, Company-3.

I have a vendor with

Site-1.1, Site-1.2 in Company-1
Site-2.1 in Company-2
Site-3.1, Site-3.2, Site-3.3 in Company-3

I have to make

 2 entries, for Company-1
 1 entry for Company-2 and
 3 entries for Company-3.

I was hoping that I could enter only one line.