stop/start controls in flv sections

Have a look at this Developer article: http://www.adobe.com/devnet/flash/articles/flvplayback_programming.html , it covers pretty much every aspect of building custom controls. What you want to do is in the section "Using cue points and seek commands" about half way down.

You have an array of cue points. If you have both the time and a name for each cue point, then you can use seekToPrevCuePoint() to jump back to the cue point that starts any given section and then use stop() to hold on that cue point.

To stop on any given cue point, you can use a function like this:

my_FLVPlybk.addEventListener(MetadataEvent.CUE_POINT, cp_listener); 
function cp_listener(eventObject:MetadataEvent):void { 
          if(eventObject.info.name == "cue point name") {
               pause();
          }
}