Why can't I add a title to a movie clip?

When you need to add subtitle text to the video, switch to the "subtitle effects" panel. First, in the video preview box in the upper right corner, position the time progress bar to the position where you want to add subtitles, then double-click the video preview box and enter text content in the pop-up box. In this way, the caption is added.

In the Font Settings column, according to the video style, apply the appropriate fonts to the titles and subtitles. For example, ancient video can use calligraphy fonts such as Long Yin style, Hongyuan sword style and purple angle style, and short film with small fresh style can use handwritten fonts such as "My Heart" and "Starlight on Earth".