Set the value of the defined channel variable to a new value. You can provide a channel ID in the 2nd field to set the variable value of the specific channel.
varName - The variable being called in the command
newValue - The new value for the channel variable
channelID - The ID of the channel attached to the variable (You can omit this field of leave empty to set the current channel variable value).
Example 1: Setting the current channel variable value
__Set the total messages sent in this channel to $message__
Example 2: Setting another channel's variable value from the channel you're in
__Set the total messages sent in <#$mentionedChannels> to $message__