Where is Apple's personal collection set?

Apple's mobile phone address book has a personal collection function, and we can add common contacts to the collection list, so that when we need to contact each other, we can make a quick call. How to set up Apple's personal collection?

Where is Apple's personal collection set? 1. Open the address book icon on the phone desktop.

2. Select the leftmost favorite, and click the+sign in the upper right corner.

3. Select the person to add to the collection in the address book interface. (You can't add them in batches, you can only add them one by one manually)

4. Click the voice call in the confirmation message window to successfully collect.