From OpenSCADAWiki
OpenSCADA distributions are supplied with a number of libraries in form the database files "SQLite" (table 3.3.2), which, when started-created a custom project, are located in the "LibsDB/" directory. According to this list we add, or use the ready entries, in the object of the database module "SQLite" for need libraries, we set the sign "To enable" and save. Next, to download the contents of the libraries you can enable the database and click on the button "Load the program from this DB", however, when loaded, a number of new objects are not enabled, so it's easier to exit the new project and run it again.