This is not possible at this time. This feature request has been documented in detail and provided to the developers for future consideration. *If you want to be notified if/when it is added please
send an email via the 'Contact Support' link and include "Notify Me When HMT-3119 Is Resolved" in the subject line and body of the email.
The only way to sync them currently is manually. You would need to keep your \HM3Archive folder on both machines sync'd via dropbox (or similar cloud hosting service), and manually import recent hands to each computer like we suggest for HM2 -*
http://hm2faq.holdemmanager.com/ques...+Using+Dropbox
You can use the Tools - Backup/Restore Database menu option for the initial transfer of the database but after that you will have to manually import hands to keep them in sync.
Please do not create your HM3 Database in a sub-folder of any cloud file hosting service (Dropbox, OneDrive, Google Drive, etc) as it can cause database corruptions because it will constantly be syncing the database to the cloud while you are playing/importing.* You can configure HM3 to archive any auto imported hand history files to a cloud file hosting service folder if you choose to as that will not affect the SQLite database in any way, and you can obviously store any HM3 database backup files you create in a cloud folder instead of the default path HM3 suggests when backing up databases.