The user would like to create some HTML and reuse it across the site.
You can use a shortcode on the legacy views or a view block with Gutenberg. The shortcode is "wpv-post-body"
You may also consider to use a third-party plugin such as:
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Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.