Remove SubD symmetry

I’m using the Commercial/Released version of Rhino 7 as of the date of this posting. I am unable to turn off the reflect tool. My artistic models use a lot of symmetry/mirror/reflect. I love the reflect subD object tool, but I’ll like it more if I can turn it off at will. Bonus: I would absolutely welcome the ability to separate the reflected halves and that would be a killer feature!

Hello - the Reflect command as a command line option ‘RemoveExistingSymmetry’

-Pascal