It would be a benefit if a user only had edit access on an area of AHA but read access on the rest of AHA, please can this be updated. I'd expect this type of user to be a paid user but maybe not as much as a full user.
As you may know, we currently have a wide set of user roles and permissions for Admins, product owners, contributors, reviewers and viewers.
We had arrived at this through comprehensive community feedback to provide permission levels which will work well with companies of all sizes. For the user you had mentioned, the best way to approach this would be to provide Contributor permissions, but communicate that they should only edit certain parts of the application.
At this time, we do not have plans to make revisions in this area. We hope you can understand.