To Align Two Surfaces
1. Click Restyle > Align. The Align tab opens.
2. Select the required constraint from the Constraints tab. By default, the surface constraint is set to Position.
3. Select the surface that you want to align.
4. Select the free edge of this surface that you want to align. If you select a tangent or curvature constraint, the selected surface becomes the follower surface.
5. Select the edge of the second surface. If you select a tangent or curvature constraint, this surface becomes the leader surface.
The first surface shifts its position to align itself with the second surface.
6. Move the endpoints of the edge of the first surface along the edge of the second surface curve to the desired location.
7. Click .