Batch export (marker-based chapter exporting)

[IcedQuinn]

It is nice to be able to export a video between a set of markers.

For example in kdenlive you can take in one long video (say a recording of multiple competitive matches from a single recording session) and make cuts for each match. You can pick a category for markers and then have the render split each time it encounters a marker in that category. So all of the clips come out separated.