title: Magento 2 Why in configuration "Use system value" is disabled
body: <p>In Magento 2 in  configuration section "Use system value" is always disabled.
  Can some one please give any idea, wow can I solved i?
  Please check attached image.</p>
  
  <p>Thanks in advance for any help.<a href="https://i.stack.imgur.com/H3Jxh.png" rel="nofollow noreferrer"> attached image </a></p>