I purchased a single verions of Logbook Pro and have now entered my complete log book. I love my new electronic log book! However, I would like to be able to update my logbook on my laptop and perhaps my office computer. What do I need to purchase to upgrade to a version that will work on my home computer (current location), laptop, and perhaps office computer. I'm assuming the data can be exported via FTP and shared among my computers? Thanks, Pat