_important_commands">Put only the most important commands fixed on the screen</h3>

<p>
  By putting commands in menus, you free up the screen to hold more content. 
  On the other hand, fixing commands in the content area of an activity
  makes them more prominent and easy to use.
</p>

<p>
  Here are a number of important reasons to place commands fixed on the activity screen:
</p>

  <ul>
    <li>
      To give a command the highest prominence, ensuring the command is obvious and won't be overlooked.<br>