Sometimes user like me need to organize and move files from a big cluterred folder, so its nice if we can sort them by file associations/kind (document,picture,video,audio, etc..) that makes them easier to move to new folder all at once example file.mp3 (audio) file.doc (document) file.pdf (document) file.gif (pictures) file.jpg (pictures) file.png (pictures) file.mkv (video) file.mp4 (video)
What's wrong with Sort by -> Type? (from Dolphin Control menu)
*** This bug has been marked as a duplicate of bug 166879 ***
"Sort by Type" is actually "Sort by Extension", because the extension is part of the type name. It does not group "AVI video" with "WMV video" files, or "AIFF audio" with "WAV audio" files, but rather separates them at the extreme ends.
next time I check more before I post :)