gPhotoShow Pro can be used as screen saver on the local computer or to create slideshows, here is the procedure to configure installed plugins for the local screen saver.
Right click on the desktop (or open settings), go to "Personalisation", "Lock Screen" and choose "Screen Saver Settings"
Once you opened the Screen Saver Configuration applet you can choose gPhotoShow as your default screen saver:
Click on "Settings..." to open the gPhotoShow Pro configuration window:
Now click on "Plug-Ins" near the bottom of the tree on the left.
Double click on the plugin you wish to configure.