Hello, 

My Address book has a check box next to it and below it i have 5 folders (or address books) also with check boxes to the left of them. Each Folder/Address book has its own contacts inside which can not be mingled.  I need to import a txt file into one of them with additional contacts. How do i ensure the contacts in it go to the correct address book?  Also, what is the significance of the check boxes? Thank you.