title: Mark current Line, and navigate through marked lines
body: <p>In Visual Studio, we can use:<br>
  <code>CTRL+kk</code> to place a marker on the current line<br>
  and<br>
  <code>CTRL+kn</code> to navigate through marked lines.</p>
  
  <p>My question is: is there a way to do this with Sublime Text2?</p>
  
  <p>Thanks</p>