The user stories can be moved from backlog to sprint easily on planning board. To move user stories from backlog to sprint.
  1. Log in to the Yodiz.
  2. Click the
    Planning board
    button on top menu bar.
  3. Select the Backlog and the Sprint from the top buttons numbered 1 and 2 on the image below.
  4. Move the item from the backlog to the sprint as shown in 3.