BIM6x wrote about collapsing/expanding all folders in ARCHICAD for easier navigation. I suggest you take a look at their article here.
For us, what this means is, finding that specific view map/layout book/library manager element is actually pretty easy. A fully expanded view map (see below) can be a lot to scroll through to find the folder or specific drawing/view you need.
Hold down alt/option key and click on the folder dropdown for the elements you want to collapse. In this case it is the view map project name list.
Now when you expand the folder out again (without the alt/option key held), you get a fully collapsed view map that you can expand folder by folder to find the exact view/layout you are looking for.
This is a mac function, not specific to ARCHICAD. So it will work on any folder/subfolder navigation within ARCHICAD; such as the Project Map, View Map, Layout Book, Publisher, Place Drawing dialogue, or the Library Manager. It also works in the finder in list view.