When changing a calendar event to a group event, one has to (re)choose a course (in order to determine which groups to show). This is now rather confusing:

We have different courses in different categories (who hasn't  ?), e.g. language courses and ICT-courses. When a language teacher changes a course event to a group event, the dropdown list contains only ICT-courses, which are of no use to the language teachers. 

It is however possible to start typing the name of the desired course in the course field, after which appropriate courses are shown. Most teacher however do not realise  this.

To make things worse: when changing the event type from course to group, the label in front of the course dropdown list disappears. After selecting 'Group' one would expect to choose the groups in this list, but the group list is further down. Confusing.

Expected behavior: after changing the event type from Course to Group:

• the course label should not disappear
• the course dropdown list should only contain courses in which the current user has access to and the right to change calendar events
• the course dropdown list should suggest the current course as default value, avoiding the need to reselect the course one is already working in (if there is a current course... perhaps the user opened the calendar from the home screen)