Is there a tracker add-on to get the contents of a opend folder to the clipboard or text file?
Yes. It’s in HaikuDepot called CopyNameToClipboard:
A Tracker add-on to get the path to a file quick and easy
This Tracker add-on allows you to get the path to one or more files, in different ways:
Holding SHIFT copies just the file name, and holding CTRL prints just one file name/path per line.
Thanks, will try