Twitter allows you to use a set of commands in the Twitter channel/query. See help set commands. Anything that doesn't look like a command will be treated as a new message. Watch out for typos, or to avoid this behaviour, set the commands setting to strict, which causes the post command to become mandatory for posting. See help set commands. Here is a short description of the commands available: undo [<#id>]Delete your last message (or one with the given ID) rt <screenname|#id>Retweet someone's last message (or one with the given ID) reply <screenname|#id>Reply to a message (with a reply-to reference, mentions only one user) rawreply <screenname|#id>Reply to a message (with no reply-to reference) greply <screenname|#id>Group reply to a message (with reply-to, mentions every user in the conversation) report <screenname|#id>Report the given user (or the user who posted the message with the given ID) for sending spam. This will also block them. follow <screenname>Start following a person unfollow <screenname>Stop following a person favourite <screenname|#id>Favourite the given user's most recent message, or the given ID. post <message>Post a message url <screenname|#id>Show URL for a message to open it in a browser (and see context)