Designer Pro "Select Materials"

[spalted]

So I was experimenting with the "Select Materials" function today while avoiding other projects.

And I recalled from the past that I could rotate the pattern direction by inverting the "H Sample/V Sample" variables.
So basically changing the texture from running in the X axis to running along the Y axis for example.

My question is, can the pattern be rotated at other angles as well?
And has anybody found a description of the other settings do, Octave, Threshold, ect. ?
I've played with them and figured out how some of them act, but I've never fully understood them all.
I've always wanted more texture options, and I know it's right here at my finger tips, but as is all to often the case I still haven't figured it out yet.

Thanks, in advance.