For example, you could synchronize all commands sent to a window by
adding this in your window item:
options:
synchronize-panes: true
See the `set-window-option` section of the tmux manual (`man tmux`) for
a list of all the options you can use.
In your layout files, you can now use the "filters" key in window items,
like so:
windows:
- name: my-new-window
root: ~/Code/foo
filters:
before: "sudo bash"
after:
- "echo 'Let’s use use ruby-1.9.2 for eachs plit'"
- "rvm use 1.9.2"
splits:
[splits list]
