Maybe I’m tired and imagining things, but I though harmonic selection tool had a preview in version 6?
I think of a bug as an issue with an included feature, not as a feature I wish were included but isn’t.
this was once incuded is what I’m saying
As far as I remember it was removed with SL6 as the selection system was completely rewritten from scratch then, but it will likely be reintroduced in SL8 as it’s been a popular request.