The GM is the only one able to add modifiers. Players don't have permission to do this.:p I can't for the life of me, being a GM, *think* of a reason for letting the players enter their own modifiers (which change depending on what "brand" of FATE you use) The player's can access modifiers that have been added in, but that's the state of the CoreRPG. I can't think of a ruleset offhand in which the player *can* add modifiers, being the GM-oriented tool it is. It's similar to the Calendar. GM tool only.

