The more artboards, groups and layers you add to your document, the more crowded the Layers List gets and it can be hard to keep track of all the nested folders. Luckily there are a couple of easy ways to get back some order into your Layers List.
1. Collapse Artboards and Groups
This one is hidden in the menu bar under “View > Layers List” and immediately folds up all artboards and groups. Since you can’t access this function with the keyboard by default set up a custom shortcut. I use shift + ctrl + cmd + C for this one.
2. Alt + click on the disclosure triangle
Even more hidden, this trick lets you either expand the full hierarchy with all the sub-groups and layers or collapse it to show the titles only. Just hold down alt on the keyboard and click on the little triangle on the left side of an artboard or group.
3. Use the search function
For a temporary fix press cmd + F to jump into the search field of the Layers List and enter the name of the layers or groups you want to display.