Grid config options should appear on the Tool Options docker, when selected. Currently, when grids are selected, the tool options docker shows nothing, so one has to go to the View Menu to edit the properties of the grid: this is counter intuitive. Make all the 3 grid options of the View menu available in the Tool options docker. And add the option to set the opacity and color of the grid in the docker.
Very similar ideas in another wishbug so I merged it there. *** This bug has been marked as a duplicate of bug 268213 ***