Adding Overlays to Live Stream

Adding Overlays to Live Stream

Hello folks,

The company I work for will host an online event through Zoho Webinar. I want to add an overlay (an image) at the bottom of the screen with all the sponsors' logos. Is it possible to add an image as an overlay during the live stream? If so, how do I do that?

I played with Zoho, and the closest I found for this type of branding is the virtual background feature. However:

1) The logos are blocked from view every time a speaker moves to where the logos are located
2) I wanted to switch the footer on and off, showing the logos from time to time throughout the live webinar

Thanks!