This is the measurement between the thicker grid lines. You can select
This is the number of smaller cells within the grid. The options are
This is for the coordinates that show up near the cursor when drawing. Whether they use the
Primary grid size,
Secondary divisions, or
Combined. For example on an eighth inch grid should a line that crosses twelve cells show
1' 4" for the length.
This setting combines with the previous one. It is to show the fractional part of coordinates in
Fractional. For example
1 1/2. Also affects
45° 30' for degrees.