How to remove current cups and create a new one?

[mattk lfc]

I want to remove both of the cup competitions in France and create a smaller one with more prize money.

I think I have figured out how to remove the current cups, but can anyone help me how I can edit the details/structure of the competition? There doesn't seem to be a section on the editor

I want to edit the prize money per round, number of teams and whether each round is 1/2 legs. Is this possible to do?

Thanks