Note that the way CommandPost achieves the batch export is by taking control of your computer's control, as you will be warned after triggering the batch export. Other than not being able to use your machine while batch exporting, you should note that CommandPost batch export clips by marking in and out points on your timeline for each clip you have selected. Which means that any adjustment layers, titles, secondary timeline clips will all have its own exported files, BUT as in a normal export, the layers will be mixed down and if the clip is below another opaque clip, the export will not show the clip underneath. Therefore it is suggested that you only select clips with edit points that reflects how you wanted your timeline to split, and any layers above it will still be mixed down even when they are not selected.