How to add another iphone on find my app

- How to add another phone on find my app
- How to add find my iphone on my apple watch
- How to add iphone on find my app
- How to add another iphone to find my phone app
- How to add another device to find my iphone app
- How do i add another iphone to find my app
- How to add someone on find my iphone app
- How to add devices on find my iphone app
- How to add new iphone to find my app