I see why this is not possible, given the text format of an org file. But I am curious if people think it would be useful. This is a bit off-topic maybe, but I’m imagining what I would do if I created something like org-mode using another underlying format.
Example: * Top Some text under “Top” ** A level-2 heading Text under level-2 heading ** Another level-2 heading Text under the second level-2 heading More text under “Top” So if the level-2 headings were collapsed we would still see this. ** Could have more sub-headings here More top level text, etc.