"Chat as" pulldown, monsters accessible to player

I've done my best to search the forums and the internet in general for an answer, but can't seem to find anything. I'm sure the answer is embarrassingly simply, but I am forced to ask nonetheless. My players as able to use the "Chat a s" at the bottom of the Text Bar to chat as any monster I've used in the game. This is far too tempting for some to resist. There must be a way turn this feature off, and leave players with only the choice to "Chat as" their profile name or their character name. Thanks in advance, and be kind >.<

Players are able to select 'Chat as' for all character sheets that they have 'Can be Edited and Controlled by' access to. You can remove their access from monsters if they shouldn't be able to move those tokens or access those character sheets. Otherwise the only workaround I'm aware of is to use the Stylus Extension , but it requires each of your players to install it.

My players have discovered this ability as well. Most of the time it's just funny, but I've been playing with this bunch for years. The "Party draft horse" often has an opinion on what is happening in the current scenario.