Phone numbers

1. Tap More then My Account
2. Select Phone numbers
3. Tap Edit
4. Select Change default number to pick a new default phone number
5. Tap the plus sign next to Add new number to add a phone number
6. Select the red minus icon to remove a phone number

Email addresses

1. Tap More then My Account
2. Select Email addresses
3. Tap Edit
4. Select Change default email address to pick a new default email address
5. Tap the plus sign next to Add new email address to add a new email
6. Select the red minus icon to remove an email address