The 5.0 includes Clear watch history in the Privacy section of Settings → General.

Review the app’s confirmation before clearing history. The screenshot does not show the earlier History Count option, so it should not be assumed to have the same location in 5.0.
Earlier Windows versions
Earlier-version guide. These instructions describe the previous Windows interface; controls in 5.0 may differ. The History Count and navigation-menu settings below belong to the previous interface.
How to view and manage history of videos played ?
CnX Player home screen displays the history (time when it was played last) of videos that have been played.
Count of videos to be maintained for history can be managed as below:
- Open Navigation Bar from top left corner of home screen.
- Select Settings from the menu.
- Select History Count menu.
- Choose the number of videos you wish to maintain the history for.
You can also Clear Playback history from the Navigation Bar --> Settings -- >> Clear Playback history