One of the features from Amarok 1 that has so far been missing from Amarok 2, is the ability to edit track metadata directly in the playlist. While it might sound surprising that such a seemingly simple and oft requested feature should take so long to implement, the extremely flexible nature of the Amarok 2 playlist made it quite tricky to get right.
Recently I decided to have a go at it, and after a few false starts, I think I finally finally made it work. So as of today, cliking on an already selected item in the playlist makes it go into "edit mode" where (some of) the visible fields can be edited (subject to a few rules about which pieces of metadata it makes sense to manually edit).
The hard part here was to generate editors that fits whatever layout the playlist is setup to use. Below are screenshots of inline editing with 2 different layouts. The look of the edit boxes could possibly do with a little tweaking, but the functionality is pretty solid.
As the attentive reader will note, this also allows changing track ratings directly in the playlist.
Look for this to arrive in an Amarok 2.2 near you.