Your original post was asking for some way to 'Hide' the parent body, but now you seem to be asking about how to get rid of it altogether. Is that true?
For NX 7.5 you don't have any easy solutions if that's what you really want to do, get rid of the parent. The best that you do now is remove the parametrics (make the model 'dumb') by going to...
Edit -> Feature -> Remove Parametrics...
...and selecting the Mirrored Body. Once you've done that, you can then delete the 'parent' body. Of course this means that there will be no way to reconnect your model back to it's parent.
Now there is one thing that you could do and that would be to create the Mirrored Body as part of WAVE linking operation where the new Mirrored Body is in a separate part file. This way, there is ONLY a WAVE link to the 'parent' part file. This means that when you export the Mirrored Body it will only see what's in that part file and will ignore the WAVE link since that body in in another part file altogther.
Note that starting with NX 8.5 we have added a function which will do exactly what you're looking without having to either 'REmove Parametrics' or create a WAVE linked part file. In NX 8.5 we added a new function that will allow you to 'Delete' a body in such a way that as far as any downstream operation is concerned, such as exporting the model to IGES or STEP or whatever, that it will never see the 'parent' body even though the Mirrored Body is still a feature and is still a 'child' of the original, now 'deleted' parent. Note that this is NOT the same as a simple
'Edit -> Delete...' operation since that will remove the 'child' as well as the 'parent'. No, the new 'Delete Body' operation removes the body from the part file but does NOT remove it from the history of the Mirrored Body. And one other thing, you can come back any time that you wish and remove this 'Delete Boy' operation and restore the 'parent' so that it can be edited so that the 'child', the Mirrored body, will now update to reflect those changes made to its 'parent'.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
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Cypress, CA
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