Hi, It would be annoying to display a hint on mouseover for all grid-editable cells.
To help 3.5.x users learn about the double-click (which is now the default action for grid editing in 4.0), we could display a hint when the user clicks on the data row (which has the effect of selecting the row, like the checkbox). However we must take care of displaying this hint just once (per session?).
Also, what about removing the "select row on click" feature? Is this intuitive?
Comments?