Is there a way to resize all custom course images to something smaller than the default size ?

There is no built in function to achieve that unfortunately

10 hours ago, Marc said:

There is no built in function to achieve that unfortunately

Then I suppose I will change this to a feedback suggestion because if you have more than three or four it becomes tedious

Feel free to post up what you need within the feedback area, with as much detail on what you want to achieve as possible.

Edit: Seems you already have :)