Adding new contacts is one of the basic tasks of an address book application.
First click on button, this will open a form in a popup.
In the popup, fill out the form with the information that you want to save. At the top of the form, you can select the address book, you want to add the contact.
More informations can be added, for this navigate between the tabs:, , , , .
When you are done, confirm the contact creating by clicking on .