At the moment I only can update controls or show a notification to the user.

I do not understand the restriction to be unable to call a method of control add-in to update some help pages (Parts with a control addin), through a background process.
Category: Development
Needs Votes
Ideas Administrator

Thank you for this suggestion! Currently this is not on our roadmap. We are tracking this idea and if it gathers more votes and comments we will consider it in the future.

Best regards,
Business Central Team