It is unlikely that they invented a coding scheme to turn all of the cut settings into 7 alphanumerics. Especially since that would mean if they decided to add another engraving option, or otherwise tweak the settings, it would nullify all existing QR codes.
And anyhow, if your QR doesn’t match one of the options in the dropdown list, then it wouldn’t function anyhow (sadly).
I am looking forward to being able to save commentary on our designs which exist in the GFUI so that I can keep my settings digitally, and cross-platform.
Till then… anotepad.com works.