Why does Body-Move/Copy not include the Cosmetic Thread?

In producing a multibody part (see attached tubular framework with inserts), I used the Body-Move/Copy command to copy one inserted part to second location.

However it did not take the cosmetic thread with it.

It seems that I have to insert a new cosmetic thread in any copied part.

Does anyone know why this happens or is there a setting/fix?

Thanks, Janek   SW 2012

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