Object.SetSectionPlanes(nPlanes, [Positions], [Normals], [FaceStyles])

positions = "line" on the plane as array of double (x,y,z)
normals = "normal vector" (direction) for the plane as array of double (x,y,z)
if you have 1 line and one normal vector you have one plane but for nPlanes you must set "2"
for 2 planes you must set 4 nPlanes.

example in vb.net:
Dim oSEApp As SolidEdgeFramework.Application = GetObject(, "SolidEdge.Application")
Dim oDoc As SolidEdgeFramework.SolidEdgeDocument = oSEApp.ActiveDocument
Dim oWin As SolidEdgeFramework.Window = oDoc.Windows.Item(1)
Dim oView As SolidEdgeFramework.View = oWin.View
Dim Positions(11) As Double
Dim normals(11) As Double

'the Positions of the first "line" on the plane
'the points are on the plane
Positions(0) = 0.02 'x
Positions(1) = 0.0 'y
Positions(2) = 0.0 'z

Positions(3) = 0.02 'x
Positions(4) = 0.1 'y 'point on the Y axis
Positions(5) = 0.0 'z

'normal-Vector for the direction of first plane
normals(0) = 0.0 'x
normals(1) = 0.0 'y
normals(2) = 0.0 'z

normals(3) = 0.1 'x 'make the plane on yz
normals(4) = 0.0 'y
normals(5) = 0.0 'z

''the Positions of the first "line" on the second plane
Positions(6) = 0.0 'x
Positions(7) = 0.0 'y
Positions(8) = 0.0 'z

Positions(9) = 0.0 'x
Positions(10) = 0.1 'y
Positions(11) = 0.0 'z
''normal-Vector for the direction of second plane
normals(6) = 0.0 'x
normals(7) = 0.0 'y
normals(8) = 0.0 'z

normals(9) = -0.1 'x
normals(10) = 0.0 'y
normals(11) = 0.0 'z
'set new
oView.SetSectionPlanes(4, Positions, normals)

if you have 1 line and one normal vector you have one plane but for nPlanes you must set "2"
for 2 planes you must set 4 nPlanes.

I can not understand this sentence, please explain in detail
Thank you