List View and you set
View Options / Arrange to
None then you get the hierarchical view with disclosure triangles. When you select anything else, you will get so called “group view”, where there are no disclosure triangles and files might be divided into groups with headings (depending on the specific arranging type).
I don’t understand your point #2. Please rephrase it.
And I don’t quite get why you mention points 3 and 4 here which are obviously related to completely different feature of TotalFinder and unrelated to the original post. Ideally you should open a new separate forum topic about those.