Exporting individual glyph as non-printing or transparent?

I’m working on a layer font with four masters: outline, regular, inset, and engraved. Is it possible to export punctuation for the inset and engraved masters in order to keep spacing consistent when designing with the font, but keep the punctuation glyphs transparent so that only the outline and regular masters show?

That should just work be leaving those empty.

Yes, that worked! Thanks so much Georg!