Solved
Add H4 in Content Fragment RichText Editor
The default paragraph formats are Paragraph, Heading 1, Heading 2, and Heading 3 (<p>, <h1>, <h2>, and <h3>). How can we enable <h4> in CF Richtext.

The default paragraph formats are Paragraph, Heading 1, Heading 2, and Heading 3 (<p>, <h1>, <h2>, and <h3>). How can we enable <h4> in CF Richtext.

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