Select the Insert section and then click More Gadgets.
Open up the Insert menu in the Google Sites Editor You should be able to see a list of available gadgets you can install on your site, including Tables, Links, and Images Find and select the More Gadgets option. This lets you add editable tools such as the POWr Video Slider to your page.
Copy and Paste URL
The Gadget manager will appear. Click Add Gadget by URL. Then paste this URL into the field. Click on Add to finish.
After you add your new Video Slider Widget to your page, you're probably going to want to adjust the shape and size of your Widget. Using the options in the pop-up window, choose the height and width of your plugin. You can decide to create a title, scrollbar or title around your Video Slider Widget, but we advise against it. You'll have more control while editing right through the plugin itself.
Set up POWr Video Slider
Visit the live Google Sites website and click the Settings Icon in the top right corner of your Video Slider Widget.
In the POWr Editor, click Import Existing Video Slider, find Video Slider- and click Copy.