Does Opus have sub-folder tip/preview?

[quote="tanis"]Adding Cascading Folder Content to your context menus]

Thank you for the link.
However, the links describes a "right click" method.
You have to right click the folder to navigate within the subfolders.

What I am asking for however, is different.
I am looking for a button that will appear beside the folder.
And when I click the button, it expands the subfolders.

I suppose such a thing does not exist for Directory Opus?