I regularly use "Print/Export Folder Listing ..." (Tools menu).
I always export the listing to a text file; it would be great if the text file name could be generated from the name of the source folder. The destination folder for the text file will always be the same; I just want to generate the file name.
For example, I want to print folder listing for
D:\Vic3D\Meetings\2021_03_March
as
D:\Vic3D\Past\Meeting Show Lists\2021_03_March.txt.
Using {Sourcepath}.txt in the filename entry box didn't do what I need, and I'm out of ideas.
And I will certainly study the additional material you've linked; I add many items to menus and toolbars. I particularly like the "3-button" as a compact group of related commands.