Follow the below mentioned steps toTransfer Contacts within Groups:
Click on the Arrow icon on the right side of "Phonebook" menu
Click on the name of the Group from which the contact is to be transferred
Search the contact to be transferred and click on the checkbox available on the left side of each contact
If the contact is to be copied to another group then click on the "Copy To" option and select on the group in which the contact is to be copied and press the "Done" button
If the contact is to be moved to another group then click on the "Move To" option and click on the group in which the contact is to be moved
See our article on the process of Editing a Contact: Click Here