Ubuntu – Putty, Byobu, Tmux and function keys

You can easily toggle on/off the use of the F-keys inside of Byobu (tmux) by pressing either:

• shift-F12 (in tmux)

• ctrl-a-! (in screen)

Full disclosure: I'm the author and maintainer of Byobu.

Not easily, no. Unfortunately, tmux only supports a single status line at a time. That's a function of tmux, and not byobu.

What you can do, however, is configure multiple status lines and cycle through them using shift-F5. You'll only be able to see one at a time, but you can cycle through them with a single keystroke.

You can define and customize these in your ~/.byobu/status file. Here's a snippet:

# Tmux has one status line, with 2 halves for status
# You can have as many tmux right lines below here, and cycle through them using Shift-F5
#tmux_right="network #disk_io custom #entropy raid reboot_required updates_available #apport #services #mail users uptime #ec2_cost #rcs_cost #fan_speed #cpu_temp battery wifi_quality #processes load_average cpu_count cpu_freq memory #swap #disk #whoami #hostname ip_address #time_utc date time"
#tmux_right="#network disk_io #custom entropy #raid #reboot_required #updates_available #apport #services #mail #users #uptime #ec2_cost #rcs_cost fan_speed cpu_temp #battery #wifi_quality #processes #load_average #cpu_count #cpu_freq #memory #swap whoami hostname ip_address #time_utc disk date time"
tmux_left=" logo #distro release #arch"
tmux_right=" network disk_io custom entropy raid reboot_required updates_available #apport #services #mail users uptime #ec2_cost #rcs_cost fan_speed cpu_temp battery wifi_quality #processes load_average cpu_count cpu_freq memory #swap #disk #whoami #hostname ip_address #time_utc date time"