Yes, you can reuse an existing playlist. No need to create a new playlist. The 2 cases are explained below.
- Default/Instant type playlist.
You can reuse your Default/Instant type playlist. You need to replace the file in that playlist and restart the playlist. The newly updated files will play instantly.
- Scheduled on Date Time/Scheduled on Time playlist
You can reuse this type of playlist. The needed changes are explained below.
- You need to change the time and date in the playlist.
- Remove the older video files and add the new files.
- You can also edit other settings like loop or playlist length if required.
- Restart the playlist(Automatic or manual).