/stamp
Set chat window stamp. The format of line in the chat window is: "<timestamp> <encryption sign> <stamp> <message>" where <stamp> is "me:" for incoming messages or "username@server/resource" for outgoing messages. This command allows to change <stamp> value.
/stamp outgoing <string>
/stamp incoming <string>
/stamp unset outgoing|incoming
outgoing
Set outgoing stamp
incoming
Set incoming stamp
unset outgoing|incoming
Use the defaults
/stamp outgoing -->
/stamp incoming <--
/stamp unset incoming