Add ability to edit name of "offered in" categories
It would be nice if the name of a "offered in" category could be changed for the entire group. Currently the only way to do this is by editing every subject in the group by removing the group with the old name and adding a group with the new name. This would come in handy when for example the regulations change and new categories are introduced, then one could easily add an indicator which version of the regulation a category belongs to.
This could be implemented with an edit button on the main page besides the category name.