You want to generate the DDLs for creating the object to database. File -> Export -> DDLs. And what you get is very general DDLs. No tablespaces, no storages, nothing… What is wrong?

If you export the DDLs without opening the physical model this is what you get. There can be a reason you actually want to do so. For example the DDLs for your test database?

If you open the physical model the DDLs will look totally different after File->Export->DDLs…