To edit a pre-defined rating, complete the following steps:

 to save the changes.
 to save the changes. to exit Edit Mode.
 to exit Edit Mode. to close the window and return to the grid.
 to close the window and return to the grid. Note: If you edit a rating, the change will only affect data from that point on (i.e. past data will not be affected) unless you run the "Recalc All" option (under System Tools).