@Alberto-Massaro ,
Sorry, I guess I don’t quite understand what you want – or rather, I’m not sure why choosing “xml” isn’t sufficient. Clicking on the +/- next to a collapsible section is the way to collapse a single level (or you can use the View > Collapse/Uncollapse Level submenus to affect all levels at the same time.
Are you saying that you don’t actually have XML-like <> around the Boy and Woman, and you still want the ability to collapse? That’s doable with a UDL, but it would take knowing what your file format really looked like to know for sure.
For example, if your file format looked like
* Boy
| mick
| patrick
| steave
end
* Woman
| Erika
| Giudith
end
Then you could set up a UDL (user defined language), where yould define * as the start of folding and end as the end of the folding block. (Unfortunately, I don’t know a way to set a blank line as the end of a UDL folding block, sorry.)
9797ed65-1a9c-40bf-a6d2-c6cb1a6c1ffe-image.png
If your data looks different than that, then you’ll have to give an example – after tying the example data, select it all and hit the </> toolbar button in the forum, so it goes in black box, like my example data above does
With example data, we might be able to come up with a UDL folding definition that would work for you. But there are limits as to what will and won’t work.