All examples show paging (all or one page visible) and calculations. Rows filtering, sorting, dragging by mouse, adding, deleting, selecting. Column resizing, moving. Key controls (arrows, tab, pgdn, pgup, home, end, +, -, space, enter, F2, esc, shift+,ctrl+,...) You can change values and update changes to server. Auto update function is available. Changes on server are persistent at least for 12 hours from last access and are visible only for your IP. Configuration and user settings are saved to cookies and are persistent. The server used is shared, therefore sometimes can be slowed down when there are many users online.