04-10-2019 03:00 PM
@musinex - You can check directly by inserting your SD card to your computer using an SD card adapter and checking on the contents of the DCIIM > 100GoPro folder. If you have a single time lapse video, for example, and you see more than one file/segment, such a video has been chaptered. Please see links below for more details:
Hope this helps.