Vendor Safety Stock in SNC

Vendor Safety Stock:

We have the following Business Requirement:

1)     Customer would like to maintain VSS (Vendor Safety Stock) in ECC for SNC and Non SNC parts,Do we have some field in ECC wherein we can maintain VSS in ECC.

2)     If we donu2019t have in ECC then Can we maintain VSS in SNC u2013product master .

3)     If we can maintain in SNC then how this data can be brought to ECC

4)     Customer would like to have the visibility of the Location product maintained at Supplier Location.

Can Experts help me on this like the Master data,Configuration  to be done in ECC/SNC .

One more thing I would like to know in SNC in Product master can we see the Safety stock.

Thanks in Advance.

Shail