Please Don HO, could you add this additional feature to Notepad++?
It could work as a complementary to "sort lines" plugins, specially for plain text files that contain lists, quotes, etc.
I expect to "output UNIQUE lines only" as a result of sort when I get enough time to build a dialog box for the extra options needed.
If you don't want it as a result of sort, would the lines need to be next to each other? How many IVY would be left?