You can easily make anyone as a manager (or remove that role) for a repository you own (or you plan to own in future).
You have to enter the person's username at our server (And NOT the person's actual name) This is because setting someone as a Manager is a serious role, so there would have been some communication between you and that person. Hence you should ask that person's username at that time.
Managers can then fetch session logs and do Hashtag analysis and even create repositories too. You can have multiple managers for a repository. Once you set/unset a manager please make sure that person knows about his/her role.
Why?
Owners of repositories may also be the owner of an office. Too busy to handle managerial activities. So we implemented this system so functions such as creating repos, checking the session logs, adding/removing members of a repository and carrying out hashtag analysis can be done by such managers; instead of the owner doing all that.