Salt shows only Stylistic Set 01 (?)

Glyphs
1

With generating the feature automatic ON – should not the salt-feature include all stylistic sets in the font?

I have a font with ss01, ss02, ss03 and the automatic OT-feature include only ss01 in salt-feature.

2

It could. But sometimes there are multiple version of the same glyph and if I put all that in one feature is would not compile.

3

Ah, yes I see why now.