Thanks for this, just gave tmux a try. Seems fantastic. Tried Version 2.0.

Here are the bindings I went for so that it feels more like screen ( what I am used to ), plus being able to use vi like commands for copy + paste:

  vim ~/.tmux.conf


  setw -g mode-keys vi
  unbind [
  bind Escape copy-mode
  unbind p
  bind p paste-buffer
  bind-key -t vi-copy 'v' begin-selection
  bind-key -t vi-copy 'y' copy-selection
  unbind C-b
  set -g prefix C-a
  bind C-a send-prefix

Split screen vertically

  ctrl+a %

Split screen horizontally

  ctrl+a "

Copy and paste works like...

  ctrl+a escape  - copy mode
  v              - enter visual mode to highlight
  y              - capture text
  ctrl+a p       - paste into terminal

Seems you can use ctrl+a (release) and arrow keys to flip between panes.

Plus ctrl+a left/right to adjust pane size.