title: How to "Discard Line" in GitKraken?
body: <p>Line can be easy staged with the plus button "Stage this line".</p>
  
  <p>There are "Discard Hunk" and "Stage Hunk" symbols.</p>
  
  <p>But how to "Discard Line"? Is there any shortcurt how to change the plus button right next to the line to minus button?</p>