Using this command, You can extend a surface by selecting an edge, multiple edges, or a face.

1.

Click  button on the toolbar, or click Insert > Surface > Extend.

2.

Select the edges. Enter the Distance for Extension.

3.

Click OK.

·   Select Edges – Select the edges to extend.

·   Linear – Extends the linear surface to the original surface.

·   Curvature - Extend surface tangent to the original surface along the edge.

·   Same Surface – Extends the surface along the geometry of the surface.

·   Distance - Set a distance to extend.