I made a microphone screen where if you equip the Microphone tool then you start chatting, your chat gets displayed on the black board. However, if you unequip the tool, then your chat won’t get displayed. There’s also a clear button for the game owner, which can be changed by changing the ID of the user in the local script. If you click the button with prompt, then there’s nothing displayed on it until you chat with the tool.
Model: https://create.roblox.com/store/asset/96775939161966/ChatBoard