Since extras 3.2.0
Purpose of this LRT is to enable synchronization of code list's items. Native suport for this is not in product yet. Please check the state of this ticket https://redmine.czechidm.com/issues/2857 if this feature is already in product use native support instead.
This LRT is using "classic" system configuration. In IdM go to tab Systems and create new system. Choose the right connector (depends on the type of system from which you want to load data). Typical usage will be database connector
Fill configuration according to used connector and test connection on Configuration tab. Now you need to go to Schema tab a generate schema. That's all you don't need to create mapping and synchroniation, because there is no entity as Code List right now.
Next step is to create empty Code List in IdM.
Finally we can configure this LRT. It has few parameters.