You can add a trend in a graph of PURE with the website visualisation. Please follow the next steps;

  1. select “Trends” (left side of screen)
  2. Select “Settings" à” (right below in screen)
  3. Select a signal in the area below the word “Settings”
  4. Select the location where the signal must be visualised. The choise is Above or Below
  5. Select which y-axis should be used. The choise is Left or Right
  6. Select a trend pen colour     
  7. Select the “+” button to add the signal 
The new signal should now be visible.