I do not have access to some tabs/ features

Each user role is defined by an administrator of Meiro Business Explorer. It is possible that an administrator does not set permission for a user to access a certain area of Meiro Business Explorer (as on the screenshot below Profiles tab and Data library tab are greyed out and ~~not possible~~impossible to access). To get additional access, please get in touch with the administrator.

Check your permissions in the User Setup tab.