Contents Designing » Intersecting » Combine and Split Tools » Merging Surfaces » Merging Surfaces That Share EdgesPrint pageMerging Surfaces That Share Edges Select Intersect > Combine . Click the first surface. Ctrl+click the second surface to merge it with the first surface.The second surface takes on the color and visibility properties of the first surface. The model tree shows the merge. « Merging SurfacesMerging Surfaces That Enclose a Volume »