When updating or creating user-generated chapters on media, clicking into the 'starting time' input box the timestamp from the timeline is automatically added which is very efficient. However, the 'end time' needs to be updated manually. It would be great if the 'end time' automatically added the same time as the next chapter starts (possibly -1 second). This would be consistent in the same way that AI chaptering automatically makes end time of previous chapter as the start of next chapter. This would also ensure chaptering is updated as chapter periods (like the AI generated functionality) and users not just treat chaptering like bookmarks.