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For not float projects, the water surface is horizontal, but the underwater terrain is changing. At this point, the water surface can be used as an auxiliary layout plane to generate pile positions based on the actual underwater terrain.

There are two ways to create an layout face: selecting an existing face or creating based on the existed layout zones.
Select an existing face to create
- Select "Select a face" as the creation method, click to select an existed face.
- After selecting the existed face, it becomes semi transparent, layout face created.
- Continue to select another existed face.

Create by Layout zone - Select zones
- Click the "Create" button and receive a prompt saying "Select a PV zone"
- Select a zone with the mouse and a dialog box will pop up

Create by Layout zone - All zones
- Click the "Create"button to bring up a dialog box
- Click "OK" to create a separate auxiliary layout plan for each layout area based on the auxiliary plane parameters

Delete layout face
- Click the “Delete” button on the interface
- After selecting a layout zone with the mouse, right-click on the menu to delete it:

Place arrays according to the layout face
If an auxiliary layout plane has been created for the layout zone, the software will prompt when placing the arrays:

When selecting "Yes", the software will arrange based on the created auxiliary layout plane.
