Copy the databases to be merged into another set of databases onto a thumb drive.

1. Run CSDS on the destination machine.
2. Select 'Sequence | Import'
3. Make sure 'Source Type' = 'Sequence database'.
4. For each database to be updated:
   1. select the 'Source' database - from the thumb drive.
   2. select the 'Destination' database.
   3. Make sure 'Skip duplicat sequences' is checked.
   4. Press the 'Import Sequences' button.

When done, copy all sequence databases from this computer to the other.

BTW, I do this in a slave/master sort of way. One machine is my master (for sequences, getouts, etc.) On the other, I create a new database each time I want to write new sequence on it. Later I import those sequences into the master computer, then delete and update all databases on the slave with those from the master.