How to delete selected contacts from a phonebook group?
Steps to delete selected contacts from a group:
Open the group from which you wish to delete the contacts from the Phonebook section in the SMS panel.
Checkmark/select the contact that you wish to delete and click on the "Delete Contacts" button given at the top bar.
Note: You can also Move or Copy these selected contacts to another group by simply using the "Move To" and "Copy To" buttons given at the top bar.