Firstly, create a database if you dont already have one set up.
Once you have a database set up, open EBA Synchronizer go to "File" menu and select "Main database".

Select the database you want as your main one.
Firstly, create a database if you dont already have one set up.
Once you have a database set up, open EBA Synchronizer go to "File" menu and select "Main database".

Select the database you want as your main one.