I've posted a follow-up that explains what this extension does, "The weekend programmer contributes his mite."

It includes screen captures of Click SEAlang so you can see what it's about and a link to the beta download page.

Of course, this version won't be useful to anyone who hasn't installed fonts for Khmer, Thai, Lao or Burmese.

Not till a future version will users be able to supply their own dictionary choices.

Roger