Preparing the Eggs and the onions at the table is somehing all the chasidim do in Bobov and I think in Kalusenberg too, Regarding other minhagim there are various sources to choose from Bobov, Klausenberg, Shinev, Gorlitz, all have their own minhagim but alot is taken from their grandfather the Holy Divrei Chaim Zatza”l,
But bobov & klausenberg both have their own seforim with their minhagim but they do usually write by each minhag from where it is so you can see if its from Sanz or somewhere else.