When you share your computer's screen in the Riverside Studio, you can select a browser tab, program window, or the entire screen.
A new video frame is added to the Studio displaying what you selected to share.
The frame expands to be the largest one so other participants can see it more easily. A participant can click the 
Minimize frame icon in the top-right corner of the frame to reduce its size .
NOTE:
If you are live streaming from the Studio to another platform, follow these steps to change how large the screen share's video frame appears on the other platform.