so osmo action 4 have this nice feature called Highlights tagging, where you press the side/power button during filming and you can tag/highlight that part for easier searching afterwards. it works on the action cam gallery, but when exported on the phone or viewed from the phone, how do you see those highlights? kinda useless if you can only see highlights on the device but you edit on the app. so you should be able to see where is the tag/highlight? especially on multiple videos from looping..

The only time you need this is when you are recording your video, so you can do something about it (lower the exposure).
If you are editing, you are too late and the video is blown out already.