Thank you for your feedback. This work is in scope to be completed within the next few months. The Access team appreciates your patience in advance.
The Access team is adjusting our status for this request – we are planning to embed the Monaco Editor (support for SQL Editor improvements) into Access, to be released within the next semester (first half of 2021), which will provide capabilities such as syntax highlighting, IntelliSense, SQL comments, and more. We are excited to have this capability released by next year, and we appreciate the energy and enthusiasm on this feature request. We still have a long ways to go to improve our experience with SQL, so please stay tuned as we execute on this objective!
-Access Product Team