Kdenlive/Manual/Clip Menu/AutomaticSceneSplit
Automatic Scene Split
This job detects Scene changes in the clip and create markers or cut the clip into sub clips.
Not sure it is working in ver 17.04. Both "Add clip markers" and "Cut scenes" works in 19.04. Cutted scenes are numbered and sorted under the clip in the project bin window. These scenes aren't saved with the project yet. All clip markers remain on the clip though.
This menu item is available from the Clip Jobs menu that appears when you right-click on a clip in the Project Tree