Kdenlive UI: Advanced Editing Timeline Bar Buttons -- Odds and Ends

With the new timeline bar, Kdenlive now prominently shows its advanced timeline editing functions to make them more accessible. So what do these four (and slightly abstract) symbols do when clicked...?

Kdenlive UI: New Timeline Bar -- Odds and Ends

Yet even more Kdenlive UI polishing: the Kdenlive status bar just below the timeline has been cleaned up. The status bar now only (mostly) contains only controls that deal with the timeline appearance, such as zoom, showing video thumbnails, and so on. All the other stuff that was slowly filling up the status bar has now found home in the new timeline toolbar, with many new buttons showing up. So what are these good for...?

Kdenlive UI: Timeline Lift & Extract -- Odds and Ends

As part of an ongoing effort to make Kdenlive more appealing to professional users, a set of new timeline operations have landed in Kdenlive's development version. Thus, they will be released to the general public as part of the next stable version 16.08.0. So what are these new extract and lift edit actions good for...?