Correct support for headings H1 - H6
To be fully accessible Sway should support headings levels H1 - H6.
It seems to only support H1 and H2. Without the additional levels, it's not possible to create a good document structure or empower content creators to create WCAG 2.1 AA compliant content.
The process of adding headings is cumbersome and counter-intuitive. It would be great if using headings could be easier.