That would be fantastic!
Our use cases are, for example:
- Translate with custom persona to a specific preselected language
- Currently, only the user’s profile language is available
- e.g., we have an EN speaking business account that set forum lang to EN but wants to publish posts in German while still preserving industry-specific jargon.
- Rephrase some “gibberish” malformed, misspelled text into a readable, structured format.
- We actually have some users with dyslexia that would benefit from this.
- Reformat/Restructure text into a predefined (post) template.
- Saves time and energy when “brain dumping” ideas/text so that I don’t have to meticulously fill the gaps after pasting a post template
Looking forward to this! 
Edit: What could be a viable minimal start is to allow admins in Persona settings for it to be added to AI helper menu. When enabled, maybe display a conditional text field in persona settings for further instructions or output format when used through AI helper menu…