- Set active story to the ground story.
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From the Pit dialog box, select either:
- Profile
 to create a pit by selecting a profile from the graphical region. - Rectangle
 to create a rectangular pit.
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To adjust the pit length, drag the Pit Length handle.
Alternatively, enter the length in the bottom value box.
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To adjust the pit width, drag the Pit Width handle.
Alternatively, enter the width in the bottom value box.
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To adjust the pit depth, drag the Pit Depth handle.
Alternatively, enter the depth in the bottom value box.
- To add a trench at the bottom of the pit, from the Pit dialog box, click Include Trench
 . - In the Trench width box, enter the trench width.
- In the Trench depth box, enter the trench depth.
To remove an existing trench, click Include Trench . You can toggle the Include Trench option to either add or remove a trench.
- To add a curb at the top of the pit, from the Pit dialog box, click Include Curb
 .- In the Curb width box, enter the curb width.
- In the Curb height box, enter the curb height.
- In Extend Downward, enter the distance by which the walls of the pit extend downwards beyond the starting story.
- Click
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