I'm tired of opening a tree of subfolders. I want to open all folders in a Layer List panel in one click. Is there a Sketch plugin or any other way of doing that?
You can open all nested layer groups by selecting the parent group and pressing cmd + shift + J. You can find additional options for the layer list under
View > Layerlist in the system menu bar.
Holding ⌥ option key and clicking on the expand arrow beside folder icon in the layer list panel will open all subfolders.