In case only tag editing is needed check Professional Tag Editor.
It supports DFF and DSF audio files as well and a lot of standard file formats too for the same price.
Also you might wish to check MP4 Stream Editor.
It supports the same tagging functionality and also editing (copying cuts, etc.) DFF and DSF files decodelessly (preserving 100% quality of the source).
DSD Tag Editor & Converter is a shareware software. Unregistered version is a fully functional 25 day trial version with 1 DFF to DSF conversion per session, 5 processing and 25 tagging limit. If you like this software please register.
Details list mode
In details list mode right mouse button click on the column headers to pop-up the options menu.
Hide default or add custom columns as needed.
Command line options
Example command line to edit ID3v2 tags in a file:
"C:\Program Files\DSD Tag Editor & Converter\DSDTagEditorAndConverter.exe" -editID3v2tags "D:\DSD Files\My song.dsf"