How to convert 2 horizontal panes to vertical panes in tmux?

Question

After doing join-pane on 2 windows, you have 2 horizontal panes. How do I rearrange the panes to be vertical panes instead?

Answer 1

C-b space (bound to next-layout by default) cycles through available layouts, you can also use the select-layout command. See man tmux for more details.

Answer 2

You should be able to use:

ctrl-b meta-2

to do this, but I'm unable to test it since OS X doesn't like anything too "meta" (we have at least that in common).

Source: http://hyperpolyglot.org/multiplexers

Answer 3

There are also an options for explicitly requiring the join/split to happen vertically/horizontally: -h and -v

(see man page and note that the -h/-v do not refer to the direction of the separator line).