Hello @VenkateshPai
Based on the current Universal Editor + Edge Delivery Services capabilities, the RTE supports enabling or disabling only the formatting options that Edge Delivery already allows - such as headings, bold, italic, lists, and links.
Adding custom styles or introducing new alignment buttons is not supported.
Edge Delivery enforces strict semantic HTML, and custom styling via the RTE is intentionally not allowed.
Reference:
Supported HTML for EDS: https://www.aem.live/developer/markup-reference
There is also a new, more configurable RTE for Universal Editor in the coming weeks :
https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/dev...