Follow action is so useful that I don't understand why I hadn't used it before with Elektet. I guess I'd been trying to be totally free with my loop choices but there's a limit to how much can be kept under control at any one time. Using 'Follow Action' within the Launch options for each clip leaves some much time for doing other (creative) things.
The launch properties for the clip Seabed Kit 4-8 are shown. The value below 'Follow Action' indicates that after 16 bars something will happen. That thing is indicated by the arrow below the number indicating that the next clip below will be played.
The follow action shown below 32 now indicates that the next clip to follow will be the 1st in the section. A section can be created by leaving a clip space before the first and after the last clip.