To add a gallery slider,
1. Open the page you want to add the slider to in Live Edit.
2. From the widget palette click and drag the gallery widget into the area of the page you would like to display the gallery slider.
3. The gallery settings dialog window will open where you can choose the different types of gallery templates to use on your gallery slider, as well you can choose which gallery to use with this slider.
4. Click Apply to save your changes.
5. Reload page to see your changes take effect.