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.