"Offline" linking to the same module

Gents,

I am looking for a way to solve following use case:

• Company A defines formal module FM_A which contains requirements
• Supplier B shall link his test cases, which he defined in his local DOORS DB module FM_B, to objects in FM_A
• Supplier C shall link his test cases, which he defined in his local DOORS DB module FM_C, to objects in FM_A
• Suppliers B shall see only a subset of objects in FM_A

Up to now, the DOORS data exchange is handled via Partition definitions, which works quite well. But I am struggling with the above scenario :-(

My questions:

• How can I export a subset of objects into a partition (not REQIF)
• How can I share module FM_A and a subset of FM_A at the same time (preferred via Partitions)?

Thanks for your feedback!

Cheers

MH