We are using the 5E OGL character sheets, and my character just got a Stone of Good Luck, which says: "While this polished agate is on your person, you gain a +1 bonus to ability checks and saving throws". I dropped it from the compendium onto my sheet, and it automatically improved my Saves by +1, but it isn't affecting the Ability checks at all. I don't see any 'global' ability check modifier, or any way to add in the +1 to ability checks from the Stone. Am I missing something?