When COVID hit, we moved our D&D 5e game to Roll20 and I ran a couple of adventures from Tales from the Yawning Portal, before I ran Dragon Heist. After finishing the latter, we have just started Curse of Strahd. In the former two adventure, when I rolled monster attacks, damage, etc., as the DM, the players couldn't see the rolls. They could see when I rolled an NPC's attacks and damage, which was fine. I don't know how I set this up, if I did. I don't remember doing so, it just seemed to be the default setting. In Curse of Strahd , though, they can see all my rolls, and neither my players or I like it. How do I change this setting, so that DM rolls are hidden by default? I have searched for the answer, and seen different - and conflicting - advice, including suggestions to change a setting on literally every monster stat block. Sorry, ain't gonna happen, I don't have that much free time! Surely there must be a simple switch or setting for this, for all sorts of obvious reasons?