Need assistance with user style tweak applying "styleset"

[beptop]

I would like to enable a fonts otf styles, however, I'm not too smart when it comes to these things. This particular font has 14 opentype values.

@styleset - Specifies a feature name that will work with the styleset() functional notation of font-variant-alternates. A styleset feature value definition allows an unlimited number of values: ident1: 2 4 12 1 maps to the OpenType values ss02, ss04, ss12, and ss01. Note that values higher than 99 are valid, but don't map to any OpenType values and are ignored.

https://developer.mozilla.org/en-US/...feature-values