There are two kinds of papellony: one is equivalent to scaly, the other is equivalent to plumetty. They're distinguished in blazon as "Azure papellony argent" and "Papellony azure and argent", respectively. The differences are trivial. It's better to avoid the use of the term "papellony" at all, if "scaly" or "plumetty" will serve. The latter two are unambiguous.
SENA Appendix F states "right step/left step: only allowed for per fess" so with a vertical line (or as shown in the arms of Patriche del Lupo), this isn't allowed.
We don't use the *term* "step" in reference to a pale. That's what Appendix F is saying. It appears that pales offset and per-pale-offset would now require documentation for further registration, however.
c.1475-1475 Armorial et Traité d'Héraldique, FRANCAIS 24381, folio 177v.
16th c. Recueil d'Armoiries Coloriées pour Servir à Connaître le Blason, ARS MS 5026, Folio 8r.
"This is an ongoing project to create an exhaustive ordinary of Johann Siebmacher's Wappenbuch from 1605"
Precedents which state that a chief and a bordure cannot be the same tincture.