Once you've entered the Yostream studio, click the Brand icon at the bottom-right corner of your screen.
Click the Banners icon.
Click the '+' button.
You'll be asked to enter banner text.
Enter the text and click Add Banner at the bottom.
Hover your mouse on the text box. Tap to show the banner on your screen while you live stream.
Your banner has been successfully created and added to your live stream.