The SD-Card Tool is indeed a sweet little helpful tool for editing filenames and more. As Thomas stated, he intends to make it even more helpful in adding functions like copying and moving files.
As for the help I provided, that's just sending him infos and screenshot as Thomas doesn't own a KN7000 himself. Furthermore I was more than glad to help him in trying out and commenting on the beta versions. I don't know about Alec and Cees, but I surely wouldn't take the credits for developing this tool.
Thomas, thank you.