USE Tracker comes with a single main window, in which you can drag and drop plugins to a processing pipeline.
Each plugin has its own parameters that can be configured in a dedicated dialog (double click the plugin in the pipeline).
To open a new source (video file, webcam, static image), use the menu File->Open source.
The current configuration of USE Tracker can be saved using the menu File->Save settings (use an .xml extension)
You can load saved configurations by selecting a file using the menu File->Load settings.
By clicking the button "Show Processing" you can monitor the effect of plugins on your source.