You can set the Grid Style to one of four options:

- None
No gridlines are drawn on the plot area

- Lines
Straight lines form a grid of squares on the plot area.

- Crosses
Crosses are drawn to indicate points where x and y have integer values (e.g., (1,1), (4,2) etc.).

- Polar
Lines of constant radius and of constant angle are drawn on the plot area.

Other options for the diagram appearance can also be configured:

- Axis Labels
Sets labels for the horizontal and vertical axes.

- Axis width:
Sets the width of the lines representing the axes.

- Line width:
Sets the width of the lines used for drawing the grid.

- Tic width:
Sets the width of the lines representing tics on the axes.

- Tic length:
Sets the length of the lines representing tics on the axes.

- Show labels
If checked, the names of the axes are shown on the plot and the axes' tics are labeled.

- Show axes
If checked, the axes are visible.

- Show arrows
If checked, the axes are displayed with arrows at their ends.