How to get back to the calling screen?
<p>my current screen-build looks like this:</p>

<p><a href="https://i.stack.imgur.com/By7qX.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/By7qX.gif" alt="current-program"></a></p>

<p>But when i try to get back from Screen <strong>250(called screen) to 100(the calling screen)</strong> it just leaves the program. </p>

<pre><code>    CASE OK_CODE.
*Navigation back to the calling screen
    WHEN 'BACK'.
      SET SCREEN 0.
</code></pre>

<p>I hope you guys could help me out. Thanks!</p>