Expand/Collapse Individual Folders

Hello,

I believe this is one of DO team's to-do tasks, but I was wondering if there was any update or progress.
I use Flat View on my lister to manage all my folders and files.
To quickly scan what files are in the folders that I am currently working with,
I am hoping to be able to expand/collapse each individual folder as well.

Here is an example.
I would only expand selected folders so that I can really focus on them.
Ex

Many Thanks!

No update yet from the previous time you asked, but it's still coming.

Thank you for your quick response, Leo!
I would buy this software again if I need to, as soon as DO release this function!