Hello,
I just took trial of your editor, but not sure this will be my favorite way to edit my phone case variations for atlest 400 listings 2x in year:)
I found it a little bit easier to delete old models manually from each listing, would...
For all products I have there, I'd like to expand them all and edit all variants right there on that same screen, without having to manually open each variant window.
As we have collections that require manual adding of products, a bulk "select products, add to collection/s" would be a HUGE time saver building a few new sites we are doling.