I am playing around with Oracle SQL Developer Data Modeler 3.3 and I am really impressed by this tool. I've got one problem though: After importing a data dictionary from Microsoft SQL Server 2008 and making some changes in the model designer (adding two tables) I am trying to sync these changes back to the database and/or create the correspondig change script. I choose "Synchronize data dictionary with model" and every change is listed in the treeview and tabular view. However, the buttons "Sync new objects", "Merge" and "DDL Preview" are disabled, the only available option is to close the dialog. Is this simply not supported for MS SQL Server or am I doing something wrong? Thank you very much in advance!