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1. Go into any list that you would like to change the default view of it .
2. In the right side , choose "All Items" , choose "Format Current View" .
3. Under the "Format View" tab , keep the " Choose Layout" option as "List" .
4 . Remove the json code that exists by default and replace the json code from the github link posted below .
5 . Customize the list by changing the json code .
GITHUB Code for Customizing People List in EFDC Sharepoint .
https://github.com/DepressionCenter/TrackMaster/blob/main/Poeple%20List-Contact%20cards%20View%20formatting.json