title: How to add custom cell into a static tableview built by storyboard?
body: <p>I use storyboard to build a tableview, and set Content to static, I design some custom cells in the tableview, each one were different, and what I want is, when I click 3rd cell, a new custom cell with a datePicker in it will be inserted next to 3rd cell, just like create a new event in iPhone calendar, but I tried many ways, all failed.</p>
  
  <p>Who has experience can share with me, or maybe I need consider another way? Kindly advise me, thanks~</p>