I'm trying to set up the attacks for a monster in the Actions section of the NPC Sheet, but I can't figure out how to make it roll the attack (which I assume it should do, right?). I've tried adding variations of "/roll d20" to both the "description" and "effect" fields and I get "There was an error with your formula. Please try again." I've also tried just "d20" and "roll d20" and I just get the text, no rolls. So is there a way to automatically roll the attacks and damage on the NPC Sheet, or do I have to use a Player Sheet to get that functionality?