In order to add a shortcut to the home screen, you will need to tap the "Contacts" icon. From there, find and tap a contact you'd like to add to the home screen. In order to add a shortcut to the home screen, tap on the "MORE" option when you are selected on the contact. From there, you will see a "Add shortcut to Home screen" option which you can select.
Let me know if that helps
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