We need to
insert a grid for grading to operate and for reports.
We
followed the following procedure
- From
grid menu click on insert grid menu item.
- Left
click somewhere on the grid to select. You will see green and one red grip
box appear
- Left
click and move bottom left grip box to move grid.
- Left
click and move on red grip box to rotate
- Enter a
value of 20 in left grid size field and hit apply
- Set
size of grid using grip box's along both axis end's.

Alternatively enter your surface points manually, through Total Station or
import from another package.