How are the contacts sorted by default and how do I sort them my way
The system is set to sort all contacts by last name, this is a default setting that cannot be changed by the users; however, you can sort all your contacts by display name, first name, organization…etc through one of the following options:
Create a contacts category and select to sort the contacts of the category by display name, first name or organization…etc, then associate all your contacts with this category, this way every time you access the contacts in this category you'll find them sorted the way you want them.
Or
Click on one of the headers in the contacts page, this will sort all your contacts by the value in the header, this is an extra click you'd have to do every time you access your contacts list
How can I import email addresses from my personal contacts to group shared contacts?
You can either copy the contacts one at a time from personal contacts to shared contacts of the group or you can export them from Outlook into a CSV file and upload them into the group shared contacts using the 'import' tool located in the shared contacts page.
How do I create separate mailing lists for different categories of users?
One way to create mailing lists is to create a contact category for each mailing list. When composing an email, click on the icon to the right of the 'TO', 'CC', or 'BCC' fields and choose the category you would like to send the email to.