(DM) RH said: Thanks Jay, I've not used EncounterHelper before (I am a new DM and this is my first Roll 20 Campaign) - what does it do exactly? I was already using an API called Concentration - that announced if a concentration spell was cast and called for Con saves if attacked and added the stopwatch icon to the token status. Does CM's concentration feature work similarly (and/or) conflict with this other API? I tried casting Heroism from a PC's spell sheet - and it asked me if i wanted to add it to CM or to ignore it. I had no idea what that meant, is there a neat explanation for when either action is appropriate? EncounterHelper allows you to define groups of monsters as encounters ahead of time, and then show/hide them (move from object layer to GM layer or vice-versa) or add them to initiative with a click. It may not sound like much, but it's a big time-saver. Say you have an encounter where some of your monsters are hidden and others are visible, and they're spread out over a large portion of the map. And maybe even a "second wave" of monsters that you want to add to combat in, let's say, round two. Selecting them all to add to initiative is kind of a pain, and time-consuming at a point when you just want combat to start rolling. With EncounterHelper, you could create two "encounters" for that map: one for the round 1 monsters, and one for wave 2. Then, when you want to add them, you bring up EH's encounter list, select the encounter you want, and all monsters in that encountered are added to initiative (which activates Combat Master). If you're using the old Concentration script, that's great. I switched to Combat Master for it, because the old one stopped auto-rolling the save damage and hasn't been updated in a long time. (its creator has been absent from Roll20 for a while.) If you have auto-add on, it asks you whether you want to add a spell to CM when it's first cast. Use it for spells that require concentration (to have the Con marker auto-add to the caster, with timed duration) and/or for spells with multiple, persistent targets (such as Bless or Haste). For spell you add to CM in this way, edit its settings in CM (the same place where you edit conditions). You can specify duration, message, concentration or not, and whether it affects targets beyond the caster. This is one area of CM that I wish had a dedicated, procedural help page, because it is not intuitive.