TableSet Control Recommendations

PS FSCM 9.2.049 PT8.60

We have two institutions in the one PS Finance instance. They require separate SetIDs for chartfields, suppliers/customers, business units, which means we must have separate SetIDs for VAT and item categories.

Is there a document that recommends the tableset controls to be shared, and which should be segregated under different SetIDs? For example, if the same values should be available, is it best to have payment terms setup under one SetID that is shared, or to create a copy of the payment terms under each SetID?

It would be great to know if there is a recommendation from Oracle on when to share or not share values under SetIDs.