Just worked this one out myself. You can't create virtual copies in Lightroom, but you can copy an image to a collection, which in my case was a re-edit collection of my Top 10 images of 2016. Which amounts to the same thing thinking about it!
I wanted to play around with the edits on my IPad, without losing the previous edits.
And this is how I do it.
Another nice feature in Lightroom Mobile that I didn't know about! And one that has opened up new possibilities for my mobile editing which I am delighted to discover.
Quick Tips in Lightroom Mobile
Thursday 22nd December 2016 - quite late!