Automatic folder expansion and preview of files as in KO Approach

I'm a big fan of your licensed products, which I cannot live without on my PC.
I also daily use KO Approach (www.ko-sw.com/Blog/Default.aspx), which has a great feature of recursively expanding folders to show their contents and preview text, zip and image files, simply by holding the mouse button.

Unfortunately this software hasn't been updated since 2011 and my email exchanges with its developer confirms he no longer maintains it.

By reading this forum, I just discovered Listary, which seems to have partly implemented this automatic folder expansion preview, but as mentioned it doesn't seem to have active maintenance since 2019, and also doesn't have this great preview feature that KO Approach has.

Maybe a future version of DirectFolders could implement some of KO Approach features?