The Spin Edge tool turns the current edge or edges to re-organize the way they separate the two adjoining polygons. For example, if you select an edge, this command spins it so that it attaches to different vertices while leaving the two bisected polygons in place. It changes the flow of your polygons while maintaining the surrounding mesh.

The Collapse command removes the selected element without destroying the integrity of the geometry. Any selected polygon, edge, or vertex is deleted but no hole is left behind. Instead, the mesh heals, closing any gaps by merging the neighboring elements together.

The Remove Edge command can be used to delete edges from the mesh geometry. This differs slightly from the Geometry > Remove tool in that it doesn't remove attached vertices, it only removes the selected edges. The vertices remain behind. To remove the edges and vertices, select the edges and then on the menu bar choose Geometry > Remove. To remove ONLY the edges, select the edges, then on the Modo Tools toolbar, click the Edge tab, then Remove Edges on the Commands section. The edges are removed and the vertices remain.

Join Edges allows you to weld two edges together. Simply select two edges and run the tool. The first selected edge moves to the position of the second selected edge and the vertices are joined.

Join Edge Average welds two edges together and the resulting edges have a position that is an average of the original edge positions. Simply select two edges and run the tool.

Split edge works like the Split vertex command. Instead of splitting vertices around a selected vertex, it separates mesh polygons along selected edges. In polygon selection mode, the command splits boundary edges of the selected polygons. This is useful when separating polygons that are selected by the close loop selection command. This is also useful for opening up a "hinge" section on a mesh.

The Grow Quads command extends a row of quad polygon along a selected edge border.

• Auto Offset - attempts to match preceding row's size, or disable to set a specific offset value.

• Offset - specifies distance of offset.

• Max. Smoothing Angle - specifies maximum smoothing for newly created polygons across angular surfaces.

The Fill Quads command attempts to fill any open holes within a mesh with only quad polygons. You first need to define the area to fill with an edge selection that outlines the target. When the command is invoked the following dialog opens. There are two possible options, pressing OK and accepting the default uses the least number of polygons to fill the area. Enabling the Fill with Grid Pattern option fills the target area with an even grid of polygons. However, this option also requires the edge selection to have an even number of edges for both its width and height. This option detects corners and properly fills the area with a grid of quad polygons, even when an entire side of the selection area is left open, such as near an outer edge of a plane.