Enabling "Remote Media Skip" will cause the next/previous playback buttons on the iOS lock screen, in "Control Center" and from external devices to skip forward/backward within the currently playing episode (rather than moving to the next/previous episode).
The "Media-Skip Forward Interval" and "Media-Skip Backward Interval" settings control the intervals for "Remote Media Skip".
Please note that with "Remote Media Skip" enabled, fast forward and fast reverse commands from external devices will move to the next/previous episode in the list. To prevent accidentally triggering a media skip, you must fast forward/reverse for 3 seconds or more to move to the next/previous episode.
Update: We now have a Video Tutorial for this feature.