Timestamp is added automatically when you submit a bet. Data is also saved locally in the browser, but CSV export is your main backup/progress file. Store your bet history CSV file locally or online (e.g. Google drive). Separate sessions of bet history can be saved individually and merged into one file for full analysis later. To remove clutter from the drop-down options, users can clear up Events, Markets and Selections directly in the latest CSV file before uploading.