Maybe this has already been asked but "repetita iuvant" anyway.
In the "Modules" window (tab) of the IDE, it would be very useful to better manage the expand/collapse. I have a project with many classes and I would like to see them closed.
Another useful thing: a key and/or key combination and/or menu item to close all open modules.
P.S. Ignore the first part, the IDE already allows that.