Coaching freezes on users with huge amounts of coached learners

https://support.frentix.com/otrs/index.pl?Action=AgentTicketZoom&TicketID=3314#16343

• Users that are coaching a lot of users have problems using the coaching tool. In the courses tab, clicking on the settings icon (the gear icon) causes OO to completely freeze. Please refer to the ticket above for more information.
• Authors have only a restricted access to the statistical results. Push the implementation to fully support authors, which can see all groups attached to a course without being member of them.
• Coach and authors must only see courses ( resources of type CourseModule ).
• Coach can only see courses set as BAR, BARG or members only where they are members.
• Authors can see courses set as B, BA, BAR, BARG and members only where they are owners.