To solve that problem personally, I use Asciidoctor, see how it is done there:
Example 76. Table with formatted, aligned and merged cells: https://docs.asciidoctor.org/asciidoc/latest/syntax-quick-reference/#ex-cell-format Org has Babel, for purposes of HTML output, Org file could use Bable to get HTML return from Babel containing Asciidoc and embed it in Org HTML. That solution is definitely not general solution, it may be personal one. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/
