None.
sessionname [name]
Rename the current session. Note, that for “screen -list” the name
shows up with the process-id prepended. If the argument name is
omitted, the name of this session is displayed. Caution: Among other
problems, the $STY environment variable will still reflect the old name.
Use of this command is strongly discouraged. Use the -S
command-line option if you need this feature.
The default is constructed from the tty and host names.
None yet.