title: Multiple tabs with tmux / tmuxinator and iTerm2
body: <p>I would like to open all my useful stuff like here in iTerm2:</p>
  
  <p><img src="https://i.stack.imgur.com/BLAbx.png" alt="iTerm2 without tmux"></p>
  
  <p>Not like this:</p>
  
  <p><img src="https://i.stack.imgur.com/Il8yN.png" alt="iTerm2 with tmux"></p>
  
  <p>I'm using tmuxinator I've defined some tabs. I wonder if it's possible to get the former behaviour at all.</p>