Ability to organize courses within Course overview block would be useful for users who have many ongoing courses.

Currently there is option to choose few filters; in progress, future, past etc. but option to make own custom list and change the order would be especially useful for teachers and other course supervisors who have various courses under their control. Some of the courses might be old or test courses which would be convenient to push end of the listings and more important could be defined to be top on the list.
 

Currently only option to personally organize them is to define course as either favorite or not. A bit more nuanced organizing method would be useful e.g. either via dragging them in certain order, or e.g. giving course boxes 'weight' as number value similar way Moodle blocks define position on a page via numeric value (-10 at first and 9 at bottom). Similar kind of system could be one option to organize course boxes within the Course overview block e.g. in 'in progress', 'future', 'past' and 'custom list', if organizing them in general makes things too complicated.