- Made the beat position more precise in the chart editor.
- Added "Add" option to context menus in the chart editor.
- Improved beats copy and paste.
- Fixed an issue with preview hit sound not reproducing in the chart editor.
- Added a button to calculate sprite animation duration based on frame count and frame rate in the chart editor. Before it was only possible to do it by changing the frame rate, now you can do it with a single click.