Concertina Collapse of all toggles

I use Remnote as an outliner quite often to build and grasp with topics. The ability to expand and collapse toggles is essential. I love the shortcuts to open and close the toggles. The shortcut to open ALL toggles in the document (SHIFT+CMD+up arrow ) is great!.... HOWEVER, there lacks an easy way to concertina close the toggles, i.e. close each level on itself and then the level above, to get back to a tightly closed main level. It just closes at the level you are at and everything is open below that. I believe this would make for an excellent workflow, in keeping with the core objectives of Remnote.