Various add-on modules are available as plugins to enhance the usability of the system.

Qt is now split into essential and add-on modules.

Special add-on modules are available for certain sports that are known for especially complex or rich statistics, such as baseball and American football.

The add-on modules were expected to follow soon.

Versant provides add-on modules for deployment or access to its Object Database.

Cascading is being actively developed by the community and a number of add-on modules are available.

In addition to its basic components, it sported all the new add-on modules he'd constructed out of equipment scavenged!

This is a fully functioning version of the software with all core modules installed and a few add-on modules.

Additional living space for the journey would be enabled through the use of inflatable add-on modules if required.

It provides for greater flexibility since the functionality can be modified, either with add-on modules or by altering the source code.