Mirroring of mold parts

[Breitreifen]

Hello
I’m an NC-programmer and I make my 3D models on my own.
I have 2 mirror-inverted parts.
I made one of them and I’d like to mirror the second one.
How can I mask or disable the original?
NX6

Thanks
Andreas

[Breitreifen]

Hello
I’m an NC-programmer and I make my 3D models on my own.
I have 2 mirror-inverted parts.
I made one of them and I’d like to mirror the second one.
How can I mask or disable the original?
NX6

Thanks
Andreas

Done…
That was a silly question