About the library
The library contains shapes and text. Add text and shapes to your video to create title clips, credits, and callouts. To access the library, click the Media & Library tab and then click Library.

To add text or a shape to the video, drag the text or shape onto the timeline or canvas. To change the duration of a callout or text, drag the end of the callout or text on the timeline.
See also
Edit text
Change the clip's or shape's color
Add a callout
Change the default duration
Create a title clip