You might want to track actions taken by your visitors on certain pages in your experiment flow to get a more in-depth image of what your visitor's behaviour. By for example implementing Facebook Pixels or Hotjar code.
In Airstrip you can now do so, by implementing custom code in your different pages! Click on "Settings" in the upper-right corner of the page editor, and then click on "Analytics". Here you can enter a piece of code that will be added to the <head> section of the page (the section where you generally store analytics code):
If you want to check whether it works just pop in a little display message, like this: <script>alert("Testing!")</script>
Check out this gif to see how it works in action: