“Then Rav Chaim Volozhin tried to get shuls to say kedusha every Shabbos but his shul burned down twice so he stopped.”
I believe you’re referring to the GR”A, who tried to get shuls to say birkas kohanim every shabbos (or every day, i don’t remember which), but his shul burnt down so he stopped. the story can be found in The Vilna Gaon (Shulman, I think)