This article is for PC computers.
There isn't an automatic way to do this but it can be done by doing the following:
All address info is saved in a file that you will just have to copy from computer 1 to computer 2.
1. Type in %appdata% in the search window in Windows.
2. When the file folder pops up, click on shipleap
3. Locate a file called addressbook.db
This file contains all your address info. Copy this file somewhere so that you can then copy it to the same folder (follow steps 1 and 2) on computer #2. You will just need to drop the file in the shipleap folder on computer #2.
4. Close and re-open the app on the computer #2 and it should work.