title: Enable "run command prompt" shortcut in Ubuntu
body: <p>In Ubuntu System Settings >> Keyboard >> Shortcuts I can't enable the "run command prompt" shortcut neither the "show the activities overview" shortcut.</p>
  
  <p>They are both in italics, unlike all other shortcuts.</p>
  
  <p>The "run command prompt" shortcut is kinda important for my work. I've been searching all over the web, but can't find any solution.</p>
  
  <p>I reinstalled Ubuntu, and now I can't enable these keys - was able to do that in previous installation.</p>
  
  <p><img src="https://i.stack.imgur.com/9oSZz.png" alt="enter image description here">
  Really hoping that someone has experienced the same problem as me, and has been able to solve the problem.</p>