Setting the call-to-action video popup icon will allow you to add a button for a popup video on the homepage.
To do that:
1. Open the HOMEPAGE tab in your sidebar
2. Open the TEMPLATES tab
3. Click on Customize
4. Click on the Call-to-Action section to get a drop-down list
5. Select Video Popup Icon
A clickable video button will appear on the homepage
6. Click on Settings next to the Video Popup Icon field in order to change the button's position.
Please note that this option is available for premium websites only.