The preview add-on adds a preview component. You can customize the preview component by providing a custom UI factory.

To learn how to provide a custom UI factory, see the class Javadoc of the TLcyPreviewAddOn.

You can find an example customization in the sample class samples.lucy.frontend.mapcentric.previewer.PreviewerOnMapCustomizerFactory. It shows how you can overlay the previewer UI on the map in map-centric Lucy.