AutoCAD Inventor :: Autodrop Multiple Nuts After Autodropping Multiple Washers

(Inv Pro 2012, XP64, Vaulted Project and Content Center)When I'm placing hardware, the Autodrop function is really convenient.  Even better when the "multiple" pickbox is active, which from what I understand is when Inventor finds similar features on the same plane that the selected autodrop component could potentially mate to.

This is a huge time-saver, since I often have lots of bolted joints that all terminate on the same plane.  Sometimes however, even when the parts lie in the same "plane", the plane isn't contiguous in that a feature breaks it across.  No biggie, it just means I have to do two or three "multi-autodrops".

Once I put washers at the back side of the connections (which multiple works like a charm on), all of a sudden when I go to place nuts, each washer surface is now it's own plane, and multi-drop no longer recognizes all the other parts.  This can be a real pain manually placing 30 or 40 nuts at a time.

I think the "Bolted Connection" option might work, but I really don't have a need to store all those subassemblies, name them, keep them vaulted properly, etc.   That would be almost as much of a headache.

Also, most of the features that I'm connecting through are created as Hole features and as "nominal" oversized bolt holes as Inventor suggests when the "clearance hole" option is used for hole creation (not randomly extruded islands), but they aren't patterned as they don't follow a prescribed circular or rectangular pattern.

Am I missing something that I can do (like something stupid simple such as holding down the "alt" key or some crazy thing like that) that will allow inventor not just to suggest CONTIGUOUS planar features, but also CO-planar features so I can place all these nuts at once?

Short of creating a custom Content center part that consists of a nut / washer assembly I can't think of anything.  And creating and publishing the nut washer assemblies will eat up some time too, since I have about 50 different combinations (some SAE washers with normal hex nuts, some SAE washers with ESNA hex, some USS washers with jam nuts, some USS Type B washers with all-steel locknuts, etc...)