I tried to make a setup of custom columns, but the setup was reflected in all the playlists.
And I want to display folder names in custom columns.I tried %folder name% and %foldername%in the setup of custom columns, but it didn't work out.
I want to carry out different setup of custom columns for every playlist.
Right, because you can’t rely on guesswork for title-formatting. Just read the guide.
 Switch from the Default UI to Columns UI, which allows you to specify different columns per playlist using filters.To me, option 2 is much more desireable, but you'd have to learn a new UI and totally redesign your layout.