Assembly Family Tables - Using Constraints in the Table?

I have a query that may become a product idea, I'm not sure:

I have a large assembly comprising a small sub-assembly and a large sub-assembly. The large sub-assembly can be assembled in a number (say 5) of different positions by mating a certain surface in the large S/A with the appropriate one of 5 different surfaces in the small S/A. These positions are not defined in terms of dimension, but are rather determined by which of a number of surfaces is chosen to mate the large S/A to.

In the past, I have made a family table, with 5 of the large S/A assembled to the generic and switched all except one off in each instance.

That's OK, but it really is a large S/A, with all the associated difficulties arising from large assemblies. Stick it in 5 times and its response becomes somewhat sluggish.

What I would like to do is assemble the large S/A once and have its assembly constraints as a column in the family table. I could define 5 constraint sets when I assemble the large S/A into the top model and disable all except one set, then use the family table to selectively enable and disable constraint sets.

I can't see a way to do this in WF4.

Is there a way?

Is it possible in WF5 or CP2?

Is there already an idea covering this? (I can't find one)

Should I raise an Idea?

I look forward to your response.

Thanks,

John

Wildfire 4, M220