Separate Authorisation groups for different BOM alternatives

Hi guys,

My client wants to restrict the authorization to view/edit BOMs at Alternative Level. Can this be met with different authorization groups for different alternatives?

I tried putting auth group 01 for Alt 1, and then found that it got copied into Alt 2 also. as a result, I am not able to put two different auth groups for different alternatives.

Appreciate your useful replies as always:)