How can I remove the "All", "History", and "Activity" tabs from the Issue viewer for a particular group of users? I only want them to see the comments.

Vernon Rauch

I would like to make it so that if a user is part of a specific group, they would only be able to see comments and not the other tags in the Activity section while viewing or editing an issue.

Jobin Kuruvilla [Adaptavist]

There is no way to do this with out some customizations or javascript hacks. Such customizations are not possible in JIRA OnDemand though.