title: How to insert a line similar to a Trend Line in Spotfire?
body: <p>Is it possible to add a 45-degree straight line over an existing scatter plot in Spotfire? If yes, then how?</p>
  
  <p><a href="https://i.stack.imgur.com/CW1GP.png" rel="nofollow noreferrer">A straight line like in the given image</a></p>