If you have sent a message in a Symphony and noticed it is incorrect and requires editing, or want to send it to another room without forwarding it, you can retrieve your last sent message by selecting ctrl + z.
Your previous message will appear in your writing area allowing you to edit it as necessary (Figure 1):
Figure 1 ctrl + z
If you wish to forward a message to another chat room, you can copy and paste it into the other room and select send.