You can load the script from the Marketplace or from: http://ctrlaltstudio.com/downloads/hifi/scripts/chat.js
Further details: http://ctrlaltstudio.dev/hifi/chat
Okay, I think I've got the current version of your script installed, and I can send a "Testing 1 2 3" comment to localchat in Sandbox... but when I then relog, the comment is gone from the chat window. Is that normal? oO
@Nathan_Adored Yes, that's expected ... there is no server to maintain a chat history from the last N minutes, so each time you log in or each new domain you visit you get only new messages.