You can create custom text to display in your broadcast on the fly, in real time.
Here's how it works. Select the custom text icon in the Media Library.
Select the edit icon on the Text Overlay Builder.
You'll find the following menu where you can select a pre-made background or upload one of your choice, select your text colour, and then enter your custom text.
Set your background: using the pull down menu, select from a variety of backgrounds, or upload your own (custom backgrounds should be created like other lower thirds).
Enter your text and decide on it's colour (white or black) as indicated here:
You'll see a preview of your text below:
Now drag the Text Overlay Builder into the Lower Third slot in the Overlay Bar.
You'll now see your Custom Text Overlay in your Scene Builder:
To take your Custom Text Overlay live, select the Pink Go Live Button: