Not really sure how to explain, but here goes. please bear with me.
1. i have a part that is driven by design table
2. i have a second part also driven by design table.
3. i want to create an assembly with these two parts and be able to drive them with another design table within the assembly. eg. in the screenshot above i wish to be able to change between BSM_M_FF_1 - BSM_M_FF_6 in the assembly design table.
Does this make sense?