When deleting move/copy main body part in multibodies it copied part also get deleted why? is there any option to remain that child part when deleting main part.
Use the "Delete/Keep Body" feature which can be found in the "Insert / Features" drop down menu, this will add a feature to delete the main body and leave the child.
You'll have to break references in the child part.
I tried this option but it not works please see the below screen shot
Is it software limitation?
No this is a correct behavior. Please use the method suggested by Ron
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