Prayer Skills-Multiple Troubles-Shulchan Aruch

The 13th of Nisan is the Yahrtzeit of Rav Yosef Karo: If a community has two troubles, they should only pray for mercy concerning one of them. They should say, “Even though we have many troubles in our hearts, we have come to pray for this.” (Rav Yosef Caro; Shulchan Aruch, Orach Chaim, 576:15)