In a single builder, you can use Heading widget and Dynamic tags for displaying single page’s title.

1. Put the Heading Widget on the page.

2. Click the icon on the right top corner of the Title field to view the dynamic tag list. Select the first item (Posts / Author) there.

3. When you click on the Title field again, you’ll see a tag select box. Select the Title from there. Then, the title will become the dynamically updated by the single post being edited.