The only area you can’t edit
Well, not directly anyways.
The Highlights area of your LinkedIn profile is a box located right below your Summary with a couple of key things someone may want to know about your profile. This is actually targeted towards the reader and may change based on who is looking at your profile. You Highlights is completely generated on its own from LinkedIn, and typically shows the following:
If you have any mutual connections with the profile you’re looking at
An option to message (say hello) or reach out to that person based on a certain topic of their expertise (generated from LinkedIn looking through their profile and understanding their strengths)
So while you cannot control what is placed in this area directly, you can control highlights that are showcased by the information you put into your experience, education, skills, and activities.