Not saying this doesn’t have merit, but I don’t fully understand the reason behind WHY you’d want to be able to collapse classes. Assuming this were possible, what would the default state be? I wouldn’t want to have to open every class manually before I could see the rules. It would just add an unnecessary step in the editing process. Also, I don’t see the benefit to hiding classes. Now that we can detach the Styles panel and put it on a second monitor, it’s actually nice to be able to see a full height window all the classes at a glance.
Just wondering your reasoning here? To me, having the search tool all I need to quickly sift through long CSS and find what I want. And I definitely wouldn’t want the classes collapsed that are in the base Style panel (the ones affecting a selected component.) That’s one of the most useful features of BSS - to quickly and easily see the cascade of style affecting a given component.