Here is how you add Linkedin Insight Tag in Swipe Pages:

Step 1:
Access your Linkedin Campaign Manager account and copy the respective Linkedin Insight Tag script.

Step 2:
Paste the Linkedin Insight Tag script in the Tracking code---->Body End section of the landing page. Then, press "Save changes".

(Please see the video below for Step 2)

Step 3:

Lastly, to publish the changes, please press the "Publish" button.